question: Was a film whose writer was influenced by M4 executive produced by M1 , M2 , and M3
query: SELECT count(*) WHERE {
  ?x0 a ns:film.film .
  ?x0 ns:film.film.executive_produced_by M1 .
  ?x0 ns:film.film.executive_produced_by M2 .
  ?x0 ns:film.film.executive_produced_by M3 .
  ?x0 ns:film.film.written_by ?x1 .
  ?x1 ns:influence.influence_node.influenced_by M4
  }