Grammars for "How recursive is language?"


Three basic grammars

The three main grammars that differ from each other only in whether some rules are recursive or not.

Fully recursive R-CFG

Grammar with both recursive and nonrecursive "shadow" rules B-CFG

Depth-limited grammar without recursive rules D-CFG


Nine grammars that interpret bare NP fragments as subject NPs

Grammar with depth-limited subject NPs and depth-limited object NPs DD-CFG

Grammar with depth-limited subject NPs and both-recursive-types object NPs DB-CFG

Grammar with depth-limited subject NPs and fully-recursive object NPs DR-CFG

Grammar with both-recursive subject NPs and depth-limited object NPs BD-CFG

Grammar with both-recursive subject NPs and both-recursive-types object NPs BB-CFG

Grammar with both-recursive subject NPs and fully-recursive object NPs BR-CFG

Grammar with fully-recursive subject NPs and depth-limited object NPs RD-CFG

Grammar with fully-recursive subject NPs and both-recursive-types object NPs RB-CFG

Grammar with fully-recursive subject NPs and fully-recursive object NPs RR-CFG


Nine grammars that interpret bare NP fragments as object NPs

Grammar with depth-limited subject NPs and depth-limited object NPs DD-CFG

Grammar with depth-limited subject NPs and both-recursive-types object NPs DB-CFG

Grammar with depth-limited subject NPs and fully-recursive object NPs DR-CFG

Grammar with both-recursive subject NPs and depth-limited object NPs BD-CFG

Grammar with both-recursive subject NPs and both-recursive-types object NPs BB-CFG

Grammar with both-recursive subject NPs and fully-recursive object NPs BR-CFG

Grammar with fully-recursive subject NPs and depth-limited object NPs RD-CFG

Grammar with fully-recursive subject NPs and both-recursive-types object NPs RB-CFG

Grammar with fully-recursive subject NPs and fully-recursive object NPs RR-CFG



Corpus

Corpus of 2336 sentence types: Full corpus

Raw corpus of 21792 original sentence tokens: Original sentence tokens



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