#
# sandbox grammar
# ATTENTION: uses TreeTagger interpretatiom of Penn TB Tagset
#

DELIMITERS = "<.>" "<!>" "<?>" ; # sentence window

SETS
LIST PPART = VBG VHG VVG ; # possible gerunds
LIST INFIN = VV VB VH;     # infinitives
LIST ADVER = RB RBR RBS;   #  adverbs


BEFORE-SECTIONS

# add gerund reading
APPEND ("" GERUND) PPART

# add present participle reading
# need to insert "" as empty wordform, otherwise things break
APPEND ("" PRESENTPART) (GERUND);

# remove original reading
REMOVE PPART

# tree tagger: always TO for "to" -> "IN" before non-infinitives,
# accepting inifinitvely many adverbs in between.
SUBSTITUTE (TO) (IN) (TO) (NOT *1C INFIN BARRIER (*) - ADVER);

# this is more work for visl and doesn't accept infinitively
# many adverbs:
#"<to>" SUBSTITUTE (TO) (IN) (TO);
#"<to>" SUBSTITUTE (IN) (TO) (+1 INFIN);
#"<to>" SUBSTITUTE (IN) (TO) (+1 ADVER) (+2 INFIN);


CONSTRAINTS
#empty

AFTER-SECTIONS
#empty