Can NLTK do coreference resolution?

[Seth Russell]

I have a need to do coreference resolution to replace pronouns with the actual subject. Can NLTK either do this directly or help with this?

As an example I have these two sentences:

John, it appears you are running a temperature.  It is currently at 37c, or 101.

 The "it" in the second sentence refers to temperature. As an english speaker, I understand that, but how can I use NLTK to get that information?

I found an old post  "How to do coreference resolution in NLTK?" (from 2+ years ago on this group) that mentions using Discourse Representation Theory but that seems not well developed.

Any better/easier way to do coreference resolution in NLTK 3?

Stanford CoreNLP (http://nlp.stanford.edu/software/corenlp.shtml) appears to have coreference resolution functionality but I'd prefer to use NLTK.