This file deals with POS tagging for German. Two different tagging
methods are available:
1. No_POS that simply does nothing at all
2. The Treetagger by Helmut Schmid, which is an external package not
(yet) included in the opensource version.
In this file all parameters are set that are required for the
treetagger.
In TTS two tagsets are used as defined by the parameter 'pos_tagset':
1. stts (STuttgart TagSet
http://www.ims.uni-stuttgart.de/ftp/pub/corpora/stts_guide.ps.gz
2. ustts (``underspecified`` STTS tagset)
ustts contains the 11 main categories of STTS
ADJ, ART, ADV, KO, ITJ, N, CARD, AP, P, PTK, V
other tagsets as provided by several lexicons (e.g. bomp, celex)
are currently mapped to ustts using a table defined in this file
(in the post_hooks of the lexicon)