How to translate syntatic parse to a dependency parse tree? - nlp

Question

Using Link Grammar I can have the syntaxic parse of sentences something like the following:
+-------------------Xp------------------+
+------->WV------->+------Ost------+ |
+-----Wd----+ | +----Ds**x---+ |
| +Ds**c+--Ss--+ +-PHc+---A---+ |
| | | | | | | |
LEFT-WALL a koala.n is.v a cute.a animal.n .
+---------------------Xp--------------------+
+------->WV------>+---------Osm--------+ |
+-----Wd----+ | +------Ds**x------+ |
| +Ds**c+--Ss-+ +--PHc-+-----A----+ |
| | | | | | | |
LEFT-WALL a wolf.n is.v a dangerous.a animal.n .
+--------------------Xp--------------------+
+------->WV------>+--------Ost--------+ |
+-----Wd----+ | +------Ds**x-----+ |
| +Ds**c+--Ss-+ +--PHc-+----A----+ |
| | | | | | | |
LEFT-WALL a dog.n is.v a faithful.a animal.n .
+-----------------------Xp----------------------+
+------->WV------->+----------Osm----------+ |
+-----Wd----+ | +-------Ds**x-------+ |
| +Ds**c+--Ss--+ +--PHv--+-----A-----+ |
| | | | | | | |
LEFT-WALL a monkey.n is.v an independant.a animal.n .
The problem with this that it's not possible AFAIK to make sens
of that output programmatically; It seems like the way to go
is to convert that syntaxic output to a dependency parse tree
how can I achieve that?

Answer 1

You may want to look at RelEx (at GitHub).
From link-grammar at Wikipedia (emphasis mine):
The semantic relationship extractor RelEx, layered on top of the
Link Grammar library, generates a dependency grammar output by
making explicit the semantic relationships between words in a
sentence. Its output can be classified as being at a level between
that of SSyntR and DSyntR of Meaning-Text Theory. It also provides
framing/grounding, anaphora resolution, head-word identification,
lexical chunking, part-of-speech identification, and tagging,
including entity, date, money, gender, etc. tagging. It includes a
compatibility mode to generate dependency output compatible with
the Stanford parser, and Penn Treebank-compatible POS tagging.