question: Was a film editor that M2 and M3 were influenced by and M4 , M5 , and M6 influenced M1 's writer
query: SELECT count(*) WHERE {
  ?x0 a ns:film.editor .
  ?x0 ns:film.writer.film M1 .
  ?x0 ns:influence.influence_node.influenced M2 .
  ?x0 ns:influence.influence_node.influenced 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
  }