question: Was a screenwriter influenced by M1 and M2 , influenced by M3 , M4 , and M5 , and influenced by M6 and M7
query: SELECT count(*) WHERE {
  ?x0 a ns:film.writer .
  ?x0 ns:influence.influence_node.influenced_by M1 .
  ?x0 ns:influence.influence_node.influenced_by M2 .
  ?x0 ns:influence.influence_node.influenced_by M3 .
  ?x0 ns:influence.influence_node.influenced_by M4 .
  ?x0 ns:influence.influence_node.influenced_by M5 .
  ?x0 ns:influence.influence_node.influenced_by M6 .
  ?x0 ns:influence.influence_node.influenced_by M7
  }