code: def type_match(a, b):
      
      # If the types are the same, return True
      if a['type'] == b['type']:
          return True
      # Otherwise, look at some special cases
      eq_groups = [
          {'ONT::GENE-PROTEIN', 'ONT::GENE', 'ONT::PROTEIN'},
          {'ONT::PHARMACOLOGIC-SUBSTANCE', 'ONT::CHEMICAL'}
          ]
      for eq_group in eq_groups:
          if a['type'] in eq_group and b['type'] in eq_group:
              return True
      return False
docs: Return True of the types of a and b are compatible, False otherwise.