Who was a German Canadian cinematographer of M3 and M4
SELECT DISTINCT ?x0 WHERE {
?x0 a ns:people.person .
?x0 ns:film.cinematographer.film M3 .
?x0 ns:film.cinematographer.film M4 .
?x0 ns:people.person.nationality ns:m.0345h .
?x0 ns:people.person.nationality ns:m.0d060g
}