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