question: Who influenced a actor , was influenced by M4 's editor , and influenced M3 's American director
query: SELECT DISTINCT ?x0 WHERE {
  ?x0 a ns:people.person .
  ?x0 ns:influence.influence_node.influenced ?x1 .
  ?x0 ns:influence.influence_node.influenced ?x2 .
  ?x0 ns:influence.influence_node.influenced_by ?x3 .
  ?x1 a ns:film.actor .
  ?x2 ns:film.director.film M3 .
  ?x2 ns:people.person.nationality ns:m.09c7w0 .
  ?x3 ns:film.editor.film M4
  }