question: Which Chinese actor that produced M4 and M5 and wrote M1 and M2 did M6 and M7 marry
query: SELECT DISTINCT ?x0 WHERE {
  ?x0 a ns:film.actor .
  ?x0 ns:film.producer.film|ns:film.production_company.films M4 .
  ?x0 ns:film.producer.film|ns:film.production_company.films M5 .
  ?x0 ns:film.writer.film M1 .
  ?x0 ns:film.writer.film M2 .
  ?x0 ns:people.person.nationality ns:m.0d05w3 .
  ?x0 ns:people.person.spouse_s/ns:people.marriage.spouse|ns:fictional_universe.fictional_character.married_to/ns:fictional_universe.marriage_of_fictional_characters.spouses M6 .
  ?x0 ns:people.person.spouse_s/ns:people.marriage.spouse|ns:fictional_universe.fictional_character.married_to/ns:fictional_universe.marriage_of_fictional_characters.spouses M7 .
  FILTER ( ?x0 != M6 ) .
  FILTER ( ?x0 != M7 )
  }