question: Which employee of M0 was influenced by a film director and influenced by M1 , M2 , and M3
query: SELECT DISTINCT ?x0 WHERE {
  ?x0 ns:influence.influence_node.influenced_by ?x1 .
  ?x0 ns:influence.influence_node.influenced_by M1 .
  ?x0 ns:influence.influence_node.influenced_by M2 .
  ?x0 ns:influence.influence_node.influenced_by M3 .
  ?x0 ns:people.person.employment_history/ns:business.employment_tenure.company M0 .
  ?x1 a ns:film.director
  }