What costume designer that M1 and M2 were written by and M3 and M4 starred married M5 and M6
SELECT DISTINCT ?x0 WHERE {
?x0 a ns:film.film_costumer_designer .
?x0 ns:film.actor.film/ns:film.performance.film M3 .
?x0 ns:film.actor.film/ns:film.performance.film M4 .
?x0 ns:film.writer.film M1 .
?x0 ns:film.writer.film M2 .
?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 M5 .
?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 .
FILTER ( ?x0 != M5 ) .
FILTER ( ?x0 != M6 )
}