Who was a German male cinematographer that M6 and M7 were directed by and M3 and M4 starred
SELECT DISTINCT ?x0 WHERE {
?x0 a ns:film.cinematographer .
?x0 a ns:people.person .
?x0 ns:film.actor.film/ns:film.performance.film M3 .
?x0 ns:film.actor.film/ns:film.performance.film M4 .
?x0 ns:film.director.film M6 .
?x0 ns:film.director.film M7 .
?x0 ns:people.person.gender ns:m.05zppz .
?x0 ns:people.person.nationality ns:m.0345h
}