Re: finding annotations relative to other annotations

[Philip Ogren]

Thank you for the feedback.  I do need this functionality.  It is very 
useful for feature extraction.  In fact, to me it seems so core to how 
feature extraction is usually done that I am surprised that there isn't 
a default index(es) for annotation order.  Whether you are doing POS 
tagging, WSD, NER, chunking, semantic role labeling or whatever you 
almost always want to know what the nearby annotations are (e.g. what is 
the POS of the token two to the left of the current annotation.) 

This approach is fine, if you need that kind of functionality.  I've
seen it used elsewhere.
--Thilo