Which screenwriter whose Swedish child directed M4 , M5 , and M6 married M1 and M2
SELECT DISTINCT ?x0 WHERE {
?x0 a ns:film.writer .
?x0 ns:people.person.children|ns:fictional_universe.fictional_character.children|ns:organization.organization.child/ns:organization.organization_relationship.child ?x1 .
?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 M1 .
?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 M2 .
?x1 ns:film.director.film M4 .
?x1 ns:film.director.film M5 .
?x1 ns:film.director.film M6 .
?x1 ns:people.person.nationality ns:m.0d0vqn .
FILTER ( ?x0 != M1 ) .
FILTER ( ?x0 != M2 )
}