question: Who was influenced by a star of a film , influenced by M1 , and influenced by M2 and M3
query: SELECT DISTINCT ?x0 WHERE {
  ?x0 a ns:people.person .
  ?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 .
  ?x1 ns:film.actor.film/ns:film.performance.film ?x2 .
  ?x2 a ns:film.film
  }