question: Did M1 and M2 influence a film producer 's spouse 's actor
query: SELECT count(*) WHERE {
  ?x0 ns:film.actor.film/ns:film.performance.character ?x1 .
  ?x1 ns:people.person.spouse_s/ns:people.marriage.spouse|ns:fictional_universe.fictional_character.married_to/ns:fictional_universe.marriage_of_fictional_characters.spouses ?x2 .
  ?x2 a ns:film.producer .
  FILTER ( ?x1 != ?x2 ) .
  M1 ns:influence.influence_node.influenced ?x0 .
  M2 ns:influence.influence_node.influenced ?x0
  }