class_docstr: A mention (possible anaphor) inherite from spacy Span class with additional informations
docstr: Does the Mention lowercase text matches another Mention/Span lowercase text
docstr_tok: ["Does","the","Mention","lowercase","text","matches","another","Mention\/Span","lowercase","text"]
code: def exact_match(self, mention2):
      """Does the Mention lowercase text matches another Mention/Span lowercase text"""
      return self.lower_ == mention2.lower_
  
imports: import re
  import io
  from six import string_types, integer_types
  from spacy.tokens import Span, Token
  from neuralcoref.train.compat import unicode_
  from neuralcoref.train.utils import encode_distance, parallel_process
  import spacy
  import numpy
label_desc: Use image node_id 10 for calling the Mention obj's underlying member method code with example usage: obj.exact_match(mention2) and returns: unknown