code: def get(self, index, tag=LEMMA):
          
          if tag == WORD:
              return self.words[index]
          if tag == LEMMA:
              return self.words[index].lemma
          if tag == POS:
              return self.words[index].type
          if tag == CHUNK:
              return self.words[index].chunk
          if tag == PNP:
              return self.words[index].pnp
          if tag == REL:
              ch = self.words[index].chunk; return ch and ch.relation
          if tag == ROLE:
              ch = self.words[index].chunk; return ch and ch.role
          if tag == ANCHOR:
              ch = self.words[index].pnp; return ch and ch.anchor
          if tag in self.words[index].custom_tags:
              return self.words[index].custom_tags[tag]
          return None
docs: Returns a tag for the word at the given index.
              The tag can be WORD, LEMMA, POS, CHUNK, PNP, RELATION, ROLE, ANCHOR or a custom word tag.