code: def make_model(self, grounding_ontology='UN', grounding_threshold=None):
          if grounding_threshold is not None:
              self.grounding_threshold = grounding_threshold
          self.grounding_ontology = grounding_ontology
          statements = [stmt for stmt in self.statements if
                        isinstance(stmt, Influence)]
          self.CAG = nx.MultiDiGraph()
          for s in statements:
              has_both_polarity = (s.subj.delta['polarity'] is not None and
                                   s.obj.delta['polarity'] is not None)
              for node, delta in zip((s.subj.concept, s.obj.concept),
                                     (s.subj.delta, s.obj.delta)):
                  self.CAG.add_node(self._node_name(node),
                                    simulable=has_both_polarity,
                                    mods=delta['adjectives'])
              linestyle = 'solid' if has_both_polarity else 'dotted'
              if has_both_polarity:
                  same_polarity = (s.subj.delta['polarity'] ==
                                   s.obj.delta['polarity'])
                  if same_polarity:
                      target_arrow_shape, linecolor = ('circle', 'green')
                  else:
                      target_arrow_shape, linecolor = ('tee', 'maroon')
              else:
                  target_arrow_shape, linecolor = ('triangle', 'maroon')
              provenance = []
              if s.evidence:
                  provenance = s.evidence[0].annotations.get('provenance', [])
                  if provenance:
                      provenance[0]['text'] = s.evidence[0].text
              self.CAG.add_edge(
                      self._node_name(s.subj.concept),
                      self._node_name(s.obj.concept),
                      subj_polarity=s.subj.delta['polarity'],
                      subj_adjectives=s.subj.delta['adjectives'],
                      obj_polarity=s.obj.delta['polarity'],
                      obj_adjectives=s.obj.delta['adjectives'],
                      linestyle=linestyle,
                      linecolor=linecolor,
                      targetArrowShape=target_arrow_shape,
                      provenance=provenance,
                  )
          return self.CAG