question: Was M4 influenced by a female star of M2 and influenced by a Canadian actor
query: SELECT count(*) WHERE {
  ?x0 a ns:film.actor .
  ?x0 ns:people.person.nationality ns:m.0d060g .
  ?x1 ns:film.actor.film/ns:film.performance.film M2 .
  ?x1 ns:people.person.gender ns:m.02zsn .
  M4 ns:influence.influence_node.influenced_by ?x0 .
  M4 ns:influence.influence_node.influenced_by ?x1
  }