question: Was a actor influenced by a character , influenced by M1 , influenced by a film director , and influenced by M2
query: SELECT count(*) WHERE {
  ?x0 a ns:film.actor .
  ?x0 ns:influence.influence_node.influenced_by ?x1 .
  ?x0 ns:influence.influence_node.influenced_by ?x2 .
  ?x0 ns:influence.influence_node.influenced_by M1 .
  ?x0 ns:influence.influence_node.influenced_by M2 .
  ?x1 a ns:fictional_universe.fictional_character .
  ?x2 a ns:film.director
  }