diff --git a/Pipfile b/Pipfile
index b7a25fd7..5e6bfe95 100644
--- a/Pipfile
+++ b/Pipfile
@@ -12,12 +12,13 @@ pandas = "==1.2.4"
 numpy = "==1.20.3"
 pyyaml = "==5.4.1"
 gffutils = "==0.10.1"
-refinegems = {editable = true, path = "."}
+refinegems = {path = "."}
 setuptools = "==58.0.0"
 markupsafe = "==2.0.1"
 depinfo = "==1.7.0"
 sortedcontainers = "==2.4.0"
 libchebipy = "==1.0.10"
+venn = "==0.1.3"
 
 [dev-packages]
 autopep8 = "*"
diff --git a/Pipfile.lock b/Pipfile.lock
index 73ef993b..4b8d3002 100644
--- a/Pipfile.lock
+++ b/Pipfile.lock
@@ -1,7 +1,7 @@
 {
     "_meta": {
         "hash": {
-            "sha256": "67d03aec15da98a1ca777320bf71e687e2bbe1e621ac5ef0ad9193b8cd86b45c"
+            "sha256": "fde2f132a5b4903e1f6ee9fd913d1903b8aa7ca2c27ca1e5aeb54ccf9e7f7eb2"
         },
         "pipfile-spec": 6,
         "requires": {
@@ -49,10 +49,11 @@
         },
         "argh": {
             "hashes": [
-                "sha256:00c9027f6f461bcf24afe599a281bbda5cbd5dee4b6705befbea293a4ca7d221",
-                "sha256:58ce3aeba09e45e7f7522b07c441eab19a005009d802d930ae7be785a2d1a76e"
+                "sha256:10e7311f3ea54a78a366e5456900d8b81049f44d8d653b524eb90cf7d29a71ee",
+                "sha256:b2093086f0e809a3ecc24b64a2145309ee8f56d034936cd59e57c558a357329d"
             ],
-            "version": "==0.27.2"
+            "markers": "python_version >= '3.8'",
+            "version": "==0.28.1"
         },
         "arrow": {
             "hashes": [
@@ -147,19 +148,19 @@
         },
         "boto3": {
             "hashes": [
-                "sha256:9a0a29179957cb26fa8c3c1fddf66b18efaeaf633e08db5fb53815ffb0421419",
-                "sha256:eb8cde24a4c5755c35126e8cd460e6b51c63d04292419e7e95721232720c7e5b"
+                "sha256:5d6e19d148c4a9d5d85f0d96570d11264f23db610f1e3c9a8b7e8b6898424691",
+                "sha256:990997248716f12b296d7d30b3119a93347d73b7a4831c015e53aaebbd074a77"
             ],
             "markers": "python_version >= '3.7'",
-            "version": "==1.26.69"
+            "version": "==1.26.72"
         },
         "botocore": {
             "hashes": [
-                "sha256:2a4ab8bcb3177daa425019e125c09996b9a6a1a62bb0baaaeeb86ffd552719cc",
-                "sha256:7e1bebca013544fbc298cb58603bfccd5f71b49c720a5c33c07cf5dfc8145a1f"
+                "sha256:77fff109e1bdbf030d8400ccab9d28454c03c7be62c1696a239b21792b0873df",
+                "sha256:8710f53af0e20f08f36a3bf434d18bc7ceba5d9835495b02aedbedd35df5de9a"
             ],
             "markers": "python_version >= '3.7'",
-            "version": "==1.29.69"
+            "version": "==1.29.72"
         },
         "cached-property": {
             "hashes": [
@@ -415,6 +416,67 @@
             "markers": "python_version >= '3.7'",
             "version": "==5.3.0"
         },
+        "contourpy": {
+            "hashes": [
+                "sha256:031154ed61f7328ad7f97662e48660a150ef84ee1bc8876b6472af88bf5a9b98",
+                "sha256:0f9d350b639db6c2c233d92c7f213d94d2e444d8e8fc5ca44c9706cf72193772",
+                "sha256:130230b7e49825c98edf0b428b7aa1125503d91732735ef897786fe5452b1ec2",
+                "sha256:152fd8f730c31fd67fe0ffebe1df38ab6a669403da93df218801a893645c6ccc",
+                "sha256:1c71fdd8f1c0f84ffd58fca37d00ca4ebaa9e502fb49825484da075ac0b0b803",
+                "sha256:24847601071f740837aefb730e01bd169fbcaa610209779a78db7ebb6e6a7051",
+                "sha256:2e9ebb4425fc1b658e13bace354c48a933b842d53c458f02c86f371cecbedecc",
+                "sha256:30676ca45084ee61e9c3da589042c24a57592e375d4b138bd84d8709893a1ba4",
+                "sha256:31a55dccc8426e71817e3fe09b37d6d48ae40aae4ecbc8c7ad59d6893569c436",
+                "sha256:366a0cf0fc079af5204801786ad7a1c007714ee3909e364dbac1729f5b0849e5",
+                "sha256:38e2e577f0f092b8e6774459317c05a69935a1755ecfb621c0a98f0e3c09c9a5",
+                "sha256:3c184ad2433635f216645fdf0493011a4667e8d46b34082f5a3de702b6ec42e3",
+                "sha256:3caea6365b13119626ee996711ab63e0c9d7496f65641f4459c60a009a1f3e80",
+                "sha256:3e927b3868bd1e12acee7cc8f3747d815b4ab3e445a28d2e5373a7f4a6e76ba1",
+                "sha256:4ee3ee247f795a69e53cd91d927146fb16c4e803c7ac86c84104940c7d2cabf0",
+                "sha256:54d43960d809c4c12508a60b66cb936e7ed57d51fb5e30b513934a4a23874fae",
+                "sha256:57119b0116e3f408acbdccf9eb6ef19d7fe7baf0d1e9aaa5381489bc1aa56556",
+                "sha256:58569c491e7f7e874f11519ef46737cea1d6eda1b514e4eb5ac7dab6aa864d02",
+                "sha256:5a011cf354107b47c58ea932d13b04d93c6d1d69b8b6dce885e642531f847566",
+                "sha256:5caeacc68642e5f19d707471890f037a13007feba8427eb7f2a60811a1fc1350",
+                "sha256:5dd34c1ae752515318224cba7fc62b53130c45ac6a1040c8b7c1a223c46e8967",
+                "sha256:60835badb5ed5f4e194a6f21c09283dd6e007664a86101431bf870d9e86266c4",
+                "sha256:62398c80ef57589bdbe1eb8537127321c1abcfdf8c5f14f479dbbe27d0322e66",
+                "sha256:6381fa66866b0ea35e15d197fc06ac3840a9b2643a6475c8fff267db8b9f1e69",
+                "sha256:64757f6460fc55d7e16ed4f1de193f362104285c667c112b50a804d482777edd",
+                "sha256:69f8ff4db108815addd900a74df665e135dbbd6547a8a69333a68e1f6e368ac2",
+                "sha256:6c180d89a28787e4b73b07e9b0e2dac7741261dbdca95f2b489c4f8f887dd810",
+                "sha256:71b0bf0c30d432278793d2141362ac853859e87de0a7dee24a1cea35231f0d50",
+                "sha256:769eef00437edf115e24d87f8926955f00f7704bede656ce605097584f9966dc",
+                "sha256:7f6979d20ee5693a1057ab53e043adffa1e7418d734c1532e2d9e915b08d8ec2",
+                "sha256:87f4d8941a9564cda3f7fa6a6cd9b32ec575830780677932abdec7bcb61717b0",
+                "sha256:89ba9bb365446a22411f0673abf6ee1fea3b2cf47b37533b970904880ceb72f3",
+                "sha256:8acf74b5d383414401926c1598ed77825cd530ac7b463ebc2e4f46638f56cce6",
+                "sha256:9056c5310eb1daa33fc234ef39ebfb8c8e2533f088bbf0bc7350f70a29bde1ac",
+                "sha256:95c3acddf921944f241b6773b767f1cbce71d03307270e2d769fd584d5d1092d",
+                "sha256:9e20e5a1908e18aaa60d9077a6d8753090e3f85ca25da6e25d30dc0a9e84c2c6",
+                "sha256:a1e97b86f73715e8670ef45292d7cc033548266f07d54e2183ecb3c87598888f",
+                "sha256:a877ada905f7d69b2a31796c4b66e31a8068b37aa9b78832d41c82fc3e056ddd",
+                "sha256:a9d7587d2fdc820cc9177139b56795c39fb8560f540bba9ceea215f1f66e1566",
+                "sha256:abf298af1e7ad44eeb93501e40eb5a67abbf93b5d90e468d01fc0c4451971afa",
+                "sha256:ae90d5a8590e5310c32a7630b4b8618cef7563cebf649011da80874d0aa8f414",
+                "sha256:b6d0f9e1d39dbfb3977f9dd79f156c86eb03e57a7face96f199e02b18e58d32a",
+                "sha256:b8d587cc39057d0afd4166083d289bdeff221ac6d3ee5046aef2d480dc4b503c",
+                "sha256:c5210e5d5117e9aec8c47d9156d1d3835570dd909a899171b9535cb4a3f32693",
+                "sha256:cc331c13902d0f50845099434cd936d49d7a2ca76cb654b39691974cb1e4812d",
+                "sha256:ce41676b3d0dd16dbcfabcc1dc46090aaf4688fd6e819ef343dbda5a57ef0161",
+                "sha256:d8165a088d31798b59e91117d1f5fc3df8168d8b48c4acc10fc0df0d0bdbcc5e",
+                "sha256:e7281244c99fd7c6f27c1c6bfafba878517b0b62925a09b586d88ce750a016d2",
+                "sha256:e96a08b62bb8de960d3a6afbc5ed8421bf1a2d9c85cc4ea73f4bc81b4910500f",
+                "sha256:ed33433fc3820263a6368e532f19ddb4c5990855e4886088ad84fd7c4e561c71",
+                "sha256:efb8f6d08ca7998cf59eaf50c9d60717f29a1a0a09caa46460d33b2924839dbd",
+                "sha256:efe99298ba37e37787f6a2ea868265465410822f7bea163edcc1bd3903354ea9",
+                "sha256:f99e9486bf1bb979d95d5cffed40689cb595abb2b841f2991fc894b3452290e8",
+                "sha256:fc1464c97579da9f3ab16763c32e5c5d5bb5fa1ec7ce509a4ca6108b61b84fab",
+                "sha256:fd7dc0e6812b799a34f6d12fcb1000539098c249c8da54f3566c6a6461d0dbad"
+            ],
+            "markers": "python_version >= '3.8'",
+            "version": "==1.0.7"
+        },
         "cookiecutter": {
             "hashes": [
                 "sha256:9f3ab027cec4f70916e28f03470bdb41e637a3ad354b4d65c765d93aad160022",
@@ -452,6 +514,14 @@
             "markers": "python_version >= '3.6'",
             "version": "==39.0.1"
         },
+        "cycler": {
+            "hashes": [
+                "sha256:3a27e95f763a428a739d2add979fa7494c912a32c17c4c38c4d5f082cad165a3",
+                "sha256:9c87405839a19696e837b3b818fed3f5f69f16f1eec1a1ad77e043dcea9c772f"
+            ],
+            "markers": "python_version >= '3.6'",
+            "version": "==0.11.0"
+        },
         "datapackage": {
             "hashes": [
                 "sha256:1e91a18c866914dea0acfe2aec785e6ec583c33766b0682c740b30bb7de88c58",
@@ -505,6 +575,14 @@
             "markers": "python_version < '3.11'",
             "version": "==1.1.0"
         },
+        "fonttools": {
+            "hashes": [
+                "sha256:2bb244009f9bf3fa100fc3ead6aeb99febe5985fa20afbfbaa2f8946c2fbdaf1",
+                "sha256:820466f43c8be8c3009aef8b87e785014133508f0de64ec469e4efb643ae54fb"
+            ],
+            "markers": "python_version >= '3.7'",
+            "version": "==4.38.0"
+        },
         "future": {
             "hashes": [
                 "sha256:34a17436ed1e96697a86f9de3d15a3b0be01d8bc8de9c1dffd59fb8234ed5307"
@@ -874,6 +952,80 @@
             "markers": "python_version >= '3.7'",
             "version": "==4.17.3"
         },
+        "kiwisolver": {
+            "hashes": [
+                "sha256:02f79693ec433cb4b5f51694e8477ae83b3205768a6fb48ffba60549080e295b",
+                "sha256:03baab2d6b4a54ddbb43bba1a3a2d1627e82d205c5cf8f4c924dc49284b87166",
+                "sha256:1041feb4cda8708ce73bb4dcb9ce1ccf49d553bf87c3954bdfa46f0c3f77252c",
+                "sha256:10ee06759482c78bdb864f4109886dff7b8a56529bc1609d4f1112b93fe6423c",
+                "sha256:1d1573129aa0fd901076e2bfb4275a35f5b7aa60fbfb984499d661ec950320b0",
+                "sha256:283dffbf061a4ec60391d51e6155e372a1f7a4f5b15d59c8505339454f8989e4",
+                "sha256:28bc5b299f48150b5f822ce68624e445040595a4ac3d59251703779836eceff9",
+                "sha256:2a66fdfb34e05b705620dd567f5a03f239a088d5a3f321e7b6ac3239d22aa286",
+                "sha256:2e307eb9bd99801f82789b44bb45e9f541961831c7311521b13a6c85afc09767",
+                "sha256:2e407cb4bd5a13984a6c2c0fe1845e4e41e96f183e5e5cd4d77a857d9693494c",
+                "sha256:2f5e60fabb7343a836360c4f0919b8cd0d6dbf08ad2ca6b9cf90bf0c76a3c4f6",
+                "sha256:36dafec3d6d6088d34e2de6b85f9d8e2324eb734162fba59d2ba9ed7a2043d5b",
+                "sha256:3fe20f63c9ecee44560d0e7f116b3a747a5d7203376abeea292ab3152334d004",
+                "sha256:41dae968a94b1ef1897cb322b39360a0812661dba7c682aa45098eb8e193dbdf",
+                "sha256:4bd472dbe5e136f96a4b18f295d159d7f26fd399136f5b17b08c4e5f498cd494",
+                "sha256:4ea39b0ccc4f5d803e3337dd46bcce60b702be4d86fd0b3d7531ef10fd99a1ac",
+                "sha256:5853eb494c71e267912275e5586fe281444eb5e722de4e131cddf9d442615626",
+                "sha256:5bce61af018b0cb2055e0e72e7d65290d822d3feee430b7b8203d8a855e78766",
+                "sha256:6295ecd49304dcf3bfbfa45d9a081c96509e95f4b9d0eb7ee4ec0530c4a96514",
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+                "sha256:70e7c2e7b750585569564e2e5ca9845acfaa5da56ac46df68414f29fea97be9f",
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+                "sha256:81e38381b782cc7e1e46c4e14cd997ee6040768101aefc8fa3c24a4cc58e98f8",
+                "sha256:841293b17ad704d70c578f1f0013c890e219952169ce8a24ebc063eecf775454",
+                "sha256:872b8ca05c40d309ed13eb2e582cab0c5a05e81e987ab9c521bf05ad1d5cf5cb",
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+                "sha256:91672bacaa030f92fc2f43b620d7b337fd9a5af28b0d6ed3f77afc43c4a64b5a",
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+                "sha256:9f85003f5dfa867e86d53fac6f7e6f30c045673fa27b603c397753bebadc3008",
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+                "sha256:a68b62a02953b9841730db7797422f983935aeefceb1679f0fc85cbfbd311c32",
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+                "sha256:b428ef021242344340460fa4c9185d0b1f66fbdbfecc6c63eff4b7c29fad429d",
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+                "sha256:ba59c92039ec0a66103b1d5fe588fa546373587a7d68f5c96f743c3396afc04b",
+                "sha256:bc8d3bd6c72b2dd9decf16ce70e20abcb3274ba01b4e1c96031e0c4067d1e7cd",
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+                "sha256:c79ebe8f3676a4c6630fd3f777f3cfecf9289666c84e775a67d1d358578dc2e3",
+                "sha256:c97528e64cb9ebeff9701e7938653a9951922f2a38bd847787d4a8e498cc83ae",
+                "sha256:d0611a0a2a518464c05ddd5a3a1a0e856ccc10e67079bb17f265ad19ab3c7597",
+                "sha256:d06adcfa62a4431d404c31216f0f8ac97397d799cd53800e9d3efc2fbb3cf14e",
+                "sha256:d41997519fcba4a1e46eb4a2fe31bc12f0ff957b2b81bac28db24744f333e955",
+                "sha256:d5b61785a9ce44e5a4b880272baa7cf6c8f48a5180c3e81c59553ba0cb0821ca",
+                "sha256:da152d8cdcab0e56e4f45eb08b9aea6455845ec83172092f09b0e077ece2cf7a",
+                "sha256:da7e547706e69e45d95e116e6939488d62174e033b763ab1496b4c29b76fabea",
+                "sha256:db5283d90da4174865d520e7366801a93777201e91e79bacbac6e6927cbceede",
+                "sha256:db608a6757adabb32f1cfe6066e39b3706d8c3aa69bbc353a5b61edad36a5cb4",
+                "sha256:e0ea21f66820452a3f5d1655f8704a60d66ba1191359b96541eaf457710a5fc6",
+                "sha256:e7da3fec7408813a7cebc9e4ec55afed2d0fd65c4754bc376bf03498d4e92686",
+                "sha256:e92a513161077b53447160b9bd8f522edfbed4bd9759e4c18ab05d7ef7e49408",
+                "sha256:ecb1fa0db7bf4cff9dac752abb19505a233c7f16684c5826d1f11ebd9472b871",
+                "sha256:efda5fc8cc1c61e4f639b8067d118e742b812c930f708e6667a5ce0d13499e29",
+                "sha256:f0a1dbdb5ecbef0d34eb77e56fcb3e95bbd7e50835d9782a45df81cc46949750",
+                "sha256:f0a71d85ecdd570ded8ac3d1c0f480842f49a40beb423bb8014539a9f32a5897",
+                "sha256:f4f270de01dd3e129a72efad823da90cc4d6aafb64c410c9033aba70db9f1ff0",
+                "sha256:f6cb459eea32a4e2cf18ba5fcece2dbdf496384413bc1bae15583f19e567f3b2",
+                "sha256:f8ad8285b01b0d4695102546b342b493b3ccc6781fc28c8c6a1bb63e95d22f09",
+                "sha256:f9f39e2f049db33a908319cf46624a569b36983c7c78318e9726a4cb8923b26c"
+            ],
+            "markers": "python_version >= '3.7'",
+            "version": "==1.4.4"
+        },
         "libchebipy": {
             "hashes": [
                 "sha256:35bbe17c1d3d23a189e0548cfcfe07a7c8564ac90e9231758de8b6f0aa284a5e",
@@ -1054,6 +1206,53 @@
             "index": "pypi",
             "version": "==2.0.1"
         },
+        "matplotlib": {
+            "hashes": [
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+                "sha256:36e44a4de37b8aecffa81c081dbfe42c4d2bf9f6dff34d03dce157ec65eb0f15",
+                "sha256:3bb99cf9655b377db1a9e47fa4479e3330ea96f4123c6c8200e482704bf1eda2",
+                "sha256:3f9d9b2be177c3cb6027cd67fbf323586417868c06c3c85d0d101703136e6b31",
+                "sha256:45edea10b75d3da43cfda12f3792833a3fa70b6eee4db1ed6aed528cef17c74e",
+                "sha256:51782fd81f09edcf265823c3bf43ff36d00db246eca39ee765ef58dc8421a642",
+                "sha256:532e97c35719f137ee5405bd3eeddc5c06eb91a032bc755a44e34a712420daf3",
+                "sha256:58e41dd1e977531ac6073b11baac8c013f3cd8706a01d3dc74e86955be8b2c0c",
+                "sha256:5920824fe1e21cbb3e38cf0f3dd24857c8959801d1031ce1fac1d50857a03bfb",
+                "sha256:5f3bc8f103b56a8c88021d481410874b1f13edf6e838da607dcb57ecff9b4594",
+                "sha256:63200cd8af1af2c07964546b7bc8f217e8bda9d0a2ef0ee0c797b36353914984",
+                "sha256:663d2dd78596c5fa3eb996bc3f34b8c2a592648ad10008f98d1348be7ae212fb",
+                "sha256:6a4b0aab29061262065bbdede617ef99cc5914d1bf0ddc8bcd8e3d7928d85bd6",
+                "sha256:6bb0452d7b8516178c969d305d9630a3c9b8cf16fcf4713261c9ebd465af0d73",
+                "sha256:72ef3783be8cbdef6bca034606a5de3862be6b72415dc5cb1fb8ddbac110049a",
+                "sha256:76c930ad0746c70f0368c4596020b736ab65b473c1f9b3872310a835d852eb19",
+                "sha256:7c5b94d598c90f2f46b3a983ffb46ab806a67099d118ae0da7ef21a2a4033b28",
+                "sha256:7ce1612e98c6326f10888df951a26ec1a577d8df49ddcaea87773bfbe23ba5cc",
+                "sha256:8481dca324e1c7b715ce091a698b181054d22072e848b6fc7895cd86f79b4449",
+                "sha256:87f831e81ea0589cd18257f84386bf30154c5f4bed373b7b75e5cb0b5d53ea87",
+                "sha256:9a9d9155e2a9f38b2eb9374c88f02fd4d6851ae17b65ee786a87d032f87008f8",
+                "sha256:9e337ac83686645a46db0e825acceea8e02fca4062483f40e9ae178e8bd1103a",
+                "sha256:b429f7c457aebb7fbe7cd69c418d1cd7c6fdc4d3c8697f45af78b8d5a7955760",
+                "sha256:b473d00ccd5c2061fd896ac127b7755baad233f8d996ea288af14ae09f8e0d1e",
+                "sha256:bd46a0e6296346c477e59a954da57beaf9c538da37b9df482e50f836e4a7d4bb",
+                "sha256:c428c0f64a86661fb4873495c4fac430ec7a7cef2b8c1c28f3d1a7277f9ea5ab",
+                "sha256:c9e5b778b6842f135902e2d82624008c6a79710207e28e86966cd136c621bfee",
+                "sha256:ca9075ab3de9e48b75fa8ccb897c34ccc1519177ad8841d99f7fd74cf43be5bf",
+                "sha256:f582cac9d11c227c652d3ce8ee223d94eb06f4228b52a8adaafa9fa62e73d5c9",
+                "sha256:f5bee6c523d13944a1fdc6f0525bc86dbbd94372f17b83fa6331aabacc8fd08e",
+                "sha256:f836444b4c5ece128b23ec36a446c9ab7f9b0f7981d0d27e13a7c366ee163f8a"
             ],
             "markers": "python_version >= '3.7'",
-            "version": "==1.10.4"
+            "version": "==1.10.5"
         },
         "pyfaidx": {
             "hashes": [
-                "sha256:3977632b7fd29049f8b11035d7e9dea0e2c5da9c235f982b4c3fae06ff1fa23f"
+                "sha256:0fa158786896255c1da269bc532b2b4de77ecd8c516e88ada0e8f86767441a9e",
+                "sha256:50346aa7a365c9b965d554a60197fda9e06c25f072a30051baddb3d8065d60f0"
             ],
-            "version": "==0.7.1"
+            "markers": "python_version >= '3.7'",
+            "version": "==0.7.2"
         },
         "pygments": {
             "hashes": [
@@ -1253,6 +1537,14 @@
             ],
             "version": "==1.2.1"
         },
+        "pyparsing": {
+            "hashes": [
+                "sha256:2b020ecf7d21b687f219b71ecad3631f644a47f01403fa1d1036b0c6416d70fb",
+                "sha256:5026bae9a10eeaefb61dab2f09052b9f4307d44aee4eda64b309723d8d206bbc"
+            ],
+            "markers": "python_full_version >= '3.6.8'",
+            "version": "==3.0.9"
+        },
         "pyperclip": {
             "hashes": [
                 "sha256:ce829433a9af640e08ee89b20f7c62132714bcc5d77df114044d0fccb8c3b3b8"
@@ -1394,8 +1686,8 @@
             "version": "==5.4.1"
         },
         "refinegems": {
-            "editable": true,
-            "path": "."
+            "path": ".",
+            "version": "==1.2"
         },
         "requests": {
             "hashes": [
@@ -1622,11 +1914,11 @@
         },
         "soupsieve": {
             "hashes": [
-                "sha256:3b2503d3c7084a42b1ebd08116e5f81aadfaea95863628c80a3b774a11b7c759",
-                "sha256:fc53893b3da2c33de295667a0e19f078c14bf86544af307354de5fcf12a3f30d"
+                "sha256:49e5368c2cda80ee7e84da9dbe3e110b70a4575f196efb74e51b94549d921955",
+                "sha256:e28dba9ca6c7c00173e34e4ba57448f0688bb681b7c5e8bf4971daafc093d69a"
             ],
-            "markers": "python_version >= '3.6'",
-            "version": "==2.3.2.post1"
+            "markers": "python_version >= '3.7'",
+            "version": "==2.4"
         },
         "sphinx": {
             "hashes": [
@@ -1844,11 +2136,11 @@
         },
         "typing-extensions": {
             "hashes": [
-                "sha256:1511434bb92bf8dd198c12b1cc812e800d4181cfcb867674e0f8279cc93087aa",
-                "sha256:16fa4864408f655d35ec496218b85f79b3437c829e93320c7c9215ccfd92489e"
+                "sha256:5cb5f4a79139d699607b3ef622a1dedafa84e115ab0024e0d9c044a9479ca7cb",
+                "sha256:fb33085c39dd998ac16d1431ebc293a8b3eedd00fd4a32de0ff79002c19511b4"
             ],
             "markers": "python_version >= '3.7'",
-            "version": "==4.4.0"
+            "version": "==4.5.0"
         },
         "unicodecsv": {
             "hashes": [
@@ -1872,6 +2164,13 @@
             "markers": "python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3, 3.4, 3.5'",
             "version": "==1.26.14"
         },
+        "venn": {
+            "hashes": [
+                "sha256:1a30f9bc0a28806a6214bba3623a04fea498119c19e22a9d293b31e561aa2091"
+            ],
+            "index": "pypi",
+            "version": "==0.1.3"
+        },
         "wrapt": {
             "hashes": [
                 "sha256:00b6d4ea20a906c0ca56d84f93065b398ab74b927a7a3dbd470f6fc503f95dc3",
@@ -2104,11 +2403,11 @@
         },
         "ipykernel": {
             "hashes": [
-                "sha256:1a04bb359212e23e46adc0116ec82ea128c1e5bd532fde4fbe679787ff36f0cf",
-                "sha256:a0f8eece39cab1ee352c9b59ec67bbe44d8299f8238e4c16ff7f4cf0052d3378"
+                "sha256:430d00549b6aaf49bd0f5393150691edb1815afa62d457ee6b1a66b25cb17874",
+                "sha256:6e9213484e4ce1fb14267ee435e18f23cc3a0634e635b9fb4ed4677b84e0fdf8"
             ],
             "index": "pypi",
-            "version": "==6.21.1"
+            "version": "==6.21.2"
         },
         "ipython": {
             "hashes": [
diff --git a/setup.py b/setup.py
index 2598cac9..916ba756 100644
--- a/setup.py
+++ b/setup.py
@@ -20,6 +20,7 @@
             "markupsafe==2.0.1", 
             "depinfo==1.7.0",
             "sortedcontainers==2.4.0",
-            "libchebipy==1.0.10"
+            "libchebipy==1.0.10",
+            "venn==0.1.3"
             ],
       zip_safe=False)
\ No newline at end of file