Which German film producer was a male film director whose spouse wrote M4 , M5 , M6 , and M7
SELECT DISTINCT ?x0 WHERE {
?x0 a ns:film.director .
?x0 a ns:film.producer .
?x0 ns:people.person.gender ns:m.05zppz .
?x0 ns:people.person.nationality ns:m.0345h .
?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 ?x1 .
?x1 ns:film.writer.film M4 .
?x1 ns:film.writer.film M5 .
?x1 ns:film.writer.film M6 .
?x1 ns:film.writer.film M7 .
FILTER ( ?x0 != ?x1 )
}