20 lines
552 B
Plaintext
20 lines
552 B
Plaintext
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## Natural Language Toolkit: sem1.fcfg
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##
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## Minimal feature-based grammar to illustrate the interpretation of
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## determiner phrases.
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##
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## Author: Ewan Klein <ewan@inf.ed.ac.uk>
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## URL: <http://nltk.sourceforge.net>
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## For license information, see LICENSE.TXT
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% start S
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S[SEM = <?subj(?vp)>] -> NP[SEM=?subj] VP[SEM=?vp]
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VP[SEM=?v] -> IV[SEM=?v]
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NP[SEM=<?det(?n)>] -> Det[SEM=?det] N[SEM=?n]
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Det[SEM=<\Q P.exists x.(Q(x) & P(x))>] -> 'a'
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Det[SEM=<\Q P.all x.(Q(x) -> P(x))>] -> 'every'
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N[SEM=<\x.dog(x)>] -> 'dog'
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IV[SEM=<\x.bark(x)>] -> 'barks'
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