getting the lemma of a word using wordnet

Question

How can I get the lemma for a given word using Wordnet. I couldn't seem to find in the wordnet documentation what i want. http://wordnet.princeton.edu/wordnet/man/wn.1WN.html

For example for the word "books" i want to get "book" , ashes => ash , booking => book, apples => apple .... etc.

i want to achieve this using wordnet in command line and I cant find exact options to retrieve such case.

A php solution would also be of great help because I originally intend to use the wordnet php API but it seems the current one in their website isn't working.

Answer 1

Morphy is a morphological processor native to WordNet. The WordNet interfaces invoke Morphy to lemmatize a word as part of the lookup process (e.g. you query "enlightened", it returns the results for both "enlightened" and, via Morphy, "enlighten").

The interfaces don't include a feature that allows a user to directly access Morphy, so using it in command line is only possible if you write your own program using one of the WordNet APIs. You can find documentation for Morphy at the WordNet site.

As near as I can tell, the PHP interface is still available, although you may need to use WordNet 2.x.

Answer 2

If you can use another tool try TreeTagger.