How do I do dependency parsing in NLTK?

Question

Going through the NLTK book, it\'s not clear how to generate a dependency tree from a given sentence.

The relevant section of the book: sub-chapter on dependency gra

Answer 1

From the Stanford Parser documentation: "the dependencies can be obtained using our software [...] on phrase-structure trees using the EnglishGrammaticalStructure class available in the parser package." http://nlp.stanford.edu/software/stanford-dependencies.shtml

The dependencies manual also mentions: "Or our conversion tool can convert the output of other constituency parsers to the Stanford Dependencies representation." http://nlp.stanford.edu/software/dependencies_manual.pdf

Neither functionality seem to be implemented in NLTK currently.