question: Did M1 influence M0 's country of nationality 's employee and influence M2
query: SELECT count(*) WHERE {
  ?x0 ns:people.person.employment_history/ns:business.employment_tenure.company ?x1 .
  ?x1 ^ns:people.person.nationality M0 .
  M1 ns:influence.influence_node.influenced ?x0 .
  M1 ns:influence.influence_node.influenced M2
  }