Is the current lowfat transformation including redundant clause nodes?

[ryderwishart]

See, for example:

I'm not totally sure whether this is consistent behaviour that needs to be fixed or just a matter of creating specific rules for certain clause nodes.

[jonathanrobie]

@ryderwishart Good question. Any time a clause contains just one clause, that indicates a possible simplification. This was needed by the HPSG parser, I think.

This is one of several changes I want to make to the structure of the trees. And I want to make these changes carefully ... together ...

[rkjtan]

In this case, I think the different clause nodes are used to indicate the relationship between the clauses. The vocative minor clause is connected to the main clause by ClCl. The two conjoined main clauses are connected by CLaCL. Then, the subordinate clause is connected to the conjoined main clauses by sub-CL: