question: Was a film producer influenced by a cinematographer of M2 , influenced by M1 , and influenced by a French screenwriter
query: SELECT count(*) WHERE {
  ?x0 a ns:film.producer .
  ?x0 ns:influence.influence_node.influenced_by ?x1 .
  ?x0 ns:influence.influence_node.influenced_by ?x2 .
  ?x0 ns:influence.influence_node.influenced_by M1 .
  ?x1 ns:film.cinematographer.film M2 .
  ?x2 a ns:film.writer .
  ?x2 ns:people.person.nationality ns:m.0f8l9c
  }