- nltk.sem.drt
- nltk.sem.drt_resolve_anaphora: This module performs the anaphora resolution functionality for
DRT.py.
- nltk.sem.evaluate: This module provides data structures for representing first-order
models.
- nltk.sem.logic: A version of first order predicate logic, built on top of the
untyped lambda calculus.
- nltk.sem.relextract: Code for extracting relational triples from the ieer and conll2002
corpora.
- nltk.sem.util: Utility functions for batch-processing sentences: parsing and
extraction of the semantic representation of the root node of the
the syntax tree, followed by evaluation of the semantic
representation in a first-order model.
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