docs: def generate_antonym(self, input_word):
          """ Generate an antonym using a Synset
          and its lemmas.
          """
          results = []
          synset = wordnet.synsets(input_word)
          for i in synset:
              if i.pos in ['n','v']:
                  for j in i.lemmas:
                     if j.antonyms():
                         name = j.antonyms()[0].name
                         results.append(PataLib().strip_underscore(name))
          results = {'input' : input_word, 'results' : results, 'category' : 'antonym'} 
          return results