code: def compare(cls, match, subject):
          
          if match.expand().lower() == subject.expand().lower():
              return 4
          elif match.kernel().lower() == subject.kernel().lower():
              return 3
          # law and lobbying firms in CRP data typically list only the first two partners
          # before 'et al'
          elif ',' in subject.expand():  # we may have a list of partners
              if subject.crp_style_firm_name() == str(match).lower():
                  return 3
          else:
              return 2
docs: Accepts two OrganizationName objects and returns an arbitrary,
              numerical score based upon how well the names match.