Package nltk :: Package corpus :: Package reader :: Module wordnet :: Class Lemma
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type Lemma

source code

    object --+    
             |    
_WordNetObject --+
                 |
                Lemma


The lexical entry for a single morphological form of a
sense-disambiguated word.

Create a Lemma from a "<word>.<pos>.<number>.<lemma>" string where:
<word> is the morphological stem identifying the synset
<pos> is one of the module attributes ADJ, ADJ_SAT, ADV, NOUN or VERB
<number> is the sense number, counting from 0.
<lemma> is the morphological form of interest

Note that <word> and <lemma> can be different, e.g. the Synset
'salt.n.03' has the Lemmas 'salt.n.03.salt', 'salt.n.03.saltiness' and
'salt.n.03.salinity'.

Lemma attributes
----------------
name - The canonical name of this lemma.
synset - The synset that this lemma belongs to.
syntactic_marker - For adjectives, the WordNet string identifying the
    syntactic position relative modified noun. See:
        http://wordnet.princeton.edu/man/wninput.5WN.html#sect10
    For all other parts of speech, this attribute is None.

Lemma methods
-------------
Lemmas have the following methods for retrieving related Lemmas. They
correspond to the names for the pointer symbols defined here:
    http://wordnet.princeton.edu/man/wninput.5WN.html#sect3
These methods all return lists of Lemmas.

antonyms
hypernyms
instance_hypernyms
hyponyms
instance_hyponyms
member_holonyms
substance_holonyms
part_holonyms
member_meronyms
substance_meronyms
part_meronyms
topic_domains
region_domains
usage_domains
attributes
derivationally_related_forms
entailments
causes
also_sees
verb_groups
similar_tos
pertainyms

Instance Methods [hide private]
 
__init__(self, wordnet_corpus_reader, synset, name, lexname_index, lex_id, syntactic_marker) source code
 
__repr__(self) source code
 
_related(self, relation_symbol) source code
 
count(self)
Return the frequency count for this Lemma
source code
 
antonyms(self) source code
 
derivationally_related_forms(self) source code
 
pertainyms(self) source code

Inherited from _WordNetObject: __eq__, __hash__, __ne__, also_sees, attributes, causes, entailments, hypernyms, hyponyms, instance_hypernyms, instance_hyponyms, member_holonyms, member_meronyms, part_holonyms, part_meronyms, region_domains, similar_tos, substance_holonyms, substance_meronyms, topic_domains, usage_domains, verb_groups

Method Details [hide private]

__init__(self, wordnet_corpus_reader, synset, name, lexname_index, lex_id, syntactic_marker)
(Constructor)

source code 
Overrides: object.__init__
(inherited documentation)

__repr__(self)
(Representation operator)

source code 
Overrides: object.__repr__
(inherited documentation)