code: def parse_output(a1_text, a2_text, sentence_segmentations):
      
  
      # Parse the sentence segmentation document
      tees_sentences = TEESSentences(sentence_segmentations)
  
      # Parse the a1 (entities) file
      entities = parse_a1(a1_text)
  
      # Parse the a2 (events) file
      events = parse_a2(a2_text, entities, tees_sentences)
  
      return events
docs: Parses the output of the TEES reader and returns a networkx graph
      with the event information.
  
      Parameters
      ----------
      a1_text : str
          Contents of the TEES a1 output, specifying the entities
      a1_text : str
          Contents of the TEES a2 output, specifying the event graph
      sentence_segmentations : str
          Concents of the TEES sentence segmentation output XML
  
      Returns
      -------
      events : networkx.DiGraph
          networkx graph with the entities, events, and relationship between
          extracted by TEES