code: def entity_descriptions(self, candidates):
      candidate_features = {}
      for candidate in candidates:
          f = self._features.description(candidate)
          if f:
              candidate_features[candidate] = f
      return candidate_features
  
imports: from sematch.utility import FileIO
  from nltk.stem import WordNetLemmatizer
  from nltk.corpus import wordnet
  import nltk
  from collections import Counter
  import itertools
  import string
  import re
label_desc: Use image node_id 8 for calling the FeatureExtractor obj's underlying member method code with example usage: obj.entity_descriptions(candidates) and returns: candidate_features