class_docstr: WordNet service
class_docstr_tok: ["WordNet","service"]
code: def __init__(self):
      try:
          nltk.data.find("corpora/wordnet")
      except LookupError:
          if (
              license_prompt(
                  "WordNet data set", "http://www.nltk.org/nltk_data/"
              )
              is False
          ):
              raise Exception(
                  "can't continue data prepare process "
                  "without downloading WordNet dataset"
              )
          nltk.download("wordnet")
      self.wordnet = wn
  
imports: import nltk
  import nltk.corpus
  import numpy
  import requests
  from gensim.models.keyedvectors import KeyedVectors
  from nltk.corpus import wordnet
  from nltk.stem.snowball import SnowballStemmer
  from nlp_architect.utils.generic import license_prompt
label_desc: Use image node_id 1 to create a new Wordnet object  with example: obj = Wordnet()