question: Did M2 influence a screenwriter , influence a actor of M1 , and marry M3 and M4
query: SELECT count(*) WHERE {
  ?x0 a ns:film.writer .
  ?x1 ns:film.actor.film/ns:film.performance.character M1 .
  FILTER ( M2 != M3 ) .
  FILTER ( M2 != M4 ) .
  M2 ns:influence.influence_node.influenced ?x0 .
  M2 ns:influence.influence_node.influenced ?x1 .
  M2 ns:people.person.spouse_s/ns:people.marriage.spouse|ns:fictional_universe.fictional_character.married_to/ns:fictional_universe.marriage_of_fictional_characters.spouses M3 .
  M2 ns:people.person.spouse_s/ns:people.marriage.spouse|ns:fictional_universe.fictional_character.married_to/ns:fictional_universe.marriage_of_fictional_characters.spouses M4
  }