Load wordnet without OMW

[ekaf]

Fix #3024: allow wordnet to load without requiring OMW.

from nltk.corpus import wordnet as wn
ss_list = wn.synsets('test')
print(ss_list)

[Synset('trial.n.02'), Synset('test.n.02'), Synset('examination.n.02'), Synset('test.n.04'), Synset('test.n.05'), Synset('test.n.06'), Synset('test.v.01'), Synset('screen.v.01'), Synset('quiz.v.01'), Synset('test.v.04'), Synset('test.v.05'), Synset('test.v.06'), Synset('test.v.07')]

print(wn.langs())

['eng']

spanish = [ss.lemmas(lang='spa') for ss in ss_list]
print(spanish)

[[Lemma('trial.n.02.prueba')], [Lemma('test.n.02.test')], [Lemma('examination.n.02.examen'), Lemma('examination.n.02.test')], [Lemma('test.n.04.examen'), Lemma('test.n.04.prueba'), Lemma('test.n.04.test')], [Lemma('test.n.05.ensayo'), Lemma('test.n.05.prueba')], [], [Lemma('test.v.01.ensayar'), Lemma('test.v.01.examinar'), Lemma('test.v.01.probar')], [], [], [], [], [], []]

print(wn.langs())

['eng', 'als', 'arb', 'bul', 'cmn', 'dan', 'ell', 'fin', 'fra', 'heb', 'hrv', 'isl', 'ita', 'ita_iwn', 'jpn', 'cat', 'eus', 'glg', 'spa', 'ind', 'zsm', 'nld', 'nno', 'nob', 'pol', 'por', 'ron', 'lit', 'slk', 'slv', 'swe', 'tha']

[stevenbird]

Thanks @ekaf!