9

Say I have the following Penn Tree:

(S (NP-SBJ the steel strike)
 (VP lasted
     (ADVP-TMP (ADVP much longer)
               (SBAR than
                     (S (NP-SBJ he)
                        (VP anticipated
                            (SBAR *?*))))))
 .)

What do abbrevations like VP and SBAR etc mean? Where can I find these definitions? What are these abbreviations called?

Ian Macalinao
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  • The answers are all helpful as a starting point, but is there any resource that explains the meanings (with a short example or otherwise) beyond breaking down each acronym to few words, for those who don't hold a fresh memory of things like subordinate conjunctions and can't afford breaking context into wikipedia on every step? – matanster Apr 21 '14 at 19:10
  • This is (essentially) a duplicate of [Java Stanford NLP: Part of Speech labels?](http://stackoverflow.com/questions/1833252/java-stanford-nlp-part-of-speech-labels). We should close this question and point people to that resource -- it is better. – David J. Sep 03 '14 at 19:16

3 Answers3

10

Those are the Penn Treebank tags, for example, VP means "Verb Phrase". The full list can be found here

Bram Vanroy
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bdk
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    The link mentioned above, http://bulba.sdsu.edu/jeanette/thesis/PennTags.html, is currently broken. – David J. Sep 03 '14 at 19:17
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    Thanks for letting me know. Here's a new link with the same content courtesey of archive.org http://web.archive.org/web/20130517134339/http://bulba.sdsu.edu/jeanette/thesis/PennTags.html – bdk Sep 04 '14 at 01:38
0

The full list of Penn Treebank POS tags (so-called tagset) including examples can be found on https://www.sketchengine.eu/penn-treebank-tagset/

If you are interested in detail information on POS tag or POS tagging, see a brief manual for beginners on https://www.sketchengine.co.uk/pos-tags/

Rodrigo
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-3

VP means verb phrase . these are standard abbreviation in the treebank.

Programmer
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