question: Did M2 influence a actor , influence M3 , M4 , M5 , M6 , and M7 , and influence a screenwriter
query: SELECT count(*) WHERE {
  ?x0 a ns:film.actor .
  ?x1 a ns:film.writer .
  M2 ns:influence.influence_node.influenced ?x0 .
  M2 ns:influence.influence_node.influenced ?x1 .
  M2 ns:influence.influence_node.influenced M3 .
  M2 ns:influence.influence_node.influenced M4 .
  M2 ns:influence.influence_node.influenced M5 .
  M2 ns:influence.influence_node.influenced M6 .
  M2 ns:influence.influence_node.influenced M7
  }