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How can I obtain the LCFRS grammar using treetools? I used the following terminal command 

treetools grammar wsj_0001.prd output leftright --dest-format rcg --markov v:1 h:2

where wsj_0001.prd is a tree and the output file I get is empty.

https://pypi.python.org/pypi/treetools/0.1.0 - I used the last command form the ones listed. Thanks.

Narendra
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Bartek
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1 Answers1

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I would suggest using a sentence from the Clark paper

user1610278
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