Did a German female cinematographer edit M1 and M2 and edit M3
SELECT count(*) WHERE {
?x0 a ns:film.cinematographer .
?x0 ns:film.editor.film M1 .
?x0 ns:film.editor.film M2 .
?x0 ns:film.editor.film M3 .
?x0 ns:people.person.gender ns:m.02zsn .
?x0 ns:people.person.nationality ns:m.0345h
}