question: Did a screenwriter influence a Mexican spouse of M2
query: SELECT count(*) WHERE {
  ?x0 a ns:film.writer .
  ?x0 ns:influence.influence_node.influenced ?x1 .
  ?x1 ns:people.person.nationality ns:m.0b90_r .
  ?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 M2 .
  FILTER ( ?x1 != M2 )
  }