NLTK's chunk parser's regular expressions can match POS tags, but can they also match specific words?
So, suppose I want to chunk any structure with a noun followed by the verb "left" (call this pattern L). For example, the sentence "the\DT dog\NN left\VB" should be chunked as
(S (DT the) (L (NN dog) (VB left))), but the sentence "the\DT dog\NN slept\VB" wouldn't be chunked at all.
I haven't been able to find any documentation on the chunking regex syntax, and all examples I've seen only match POS tags.