question: What American director of M1 did a person influence
query: SELECT DISTINCT ?x0 WHERE {
  ?x0 ns:film.director.film M1 .
  ?x0 ns:influence.influence_node.influenced_by ?x1 .
  ?x0 ns:people.person.nationality ns:m.09c7w0 .
  ?x1 a ns:people.person
  }