code: def cpe_disjoint(cls, source, target):
          
  
          # If any pairwise comparison returned DISJOINT  then
          # the overall name relationship is DISJOINT
          for att, result in CPESet2_3.compare_wfns(source, target):
              isDisjoint = result == CPESet2_3.LOGICAL_VALUE_DISJOINT
              if isDisjoint:
                  return True
          return False
docs: Compares two WFNs and returns True if the set-theoretic relation
          between the names is DISJOINT.
  
          :param CPE2_3_WFN source: first WFN CPE Name
          :param CPE2_3_WFN target: seconds WFN CPE Name
          :returns: True if the set relation between source and target
              is DISJOINT, otherwise False.
          :rtype: boolean