Is there any Treebank for free? [closed]

Answer 1

Here are a couple (English) treebanks available for free:

• American National Corpus: MASC

• Questions: QuestionBank and Stanford's corrections

• British news: BNC

• TED talks: NAIST-NTT TED Treebank

• Georgetown University Multilayer Corpus: GUM

• Biomedical:

  • NaCTeM GENIA treebank

  • Brown GENIA treebank

  • CRAFT corpus

See also Wikipedia for a huge list.

Answer 2

NLTK (for Python) offers several treebanks for free.

Answer 3

what about Penn Treebank? I hope it will be free or atleast afordable. http://www.cis.upenn.edu/~treebank/cdrom2.html