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