Using singleton object for not loading NLP cache more than once.
Make sure it does not get loaded twice.
Looking at governing verb for tense when event is noun, adjective or preposition and has no tense. I doubt that this helps a lot since it happens rarely (I think).
All tests are running through again.
Fixed small bug.
Fixed small bug for real.
Fixed small bug for real again.
Distinguish between NONE and TIMEX.
Tense also needs the NLP cache.
Forgot to update length.
Added methods helpful for reading nlp information from StanfordCoreNLP.
Activated tense_chooser which guesses the tense based on rules about the POS tags.
Forgot to add tense_chooser and moved method from tense_chooser to nlp_persistence.