Was a actor a cinematographer and editor of M1 and M2
SELECT count(*) WHERE {
?x0 a ns:film.actor .
?x0 ns:film.cinematographer.film M1 .
?x0 ns:film.cinematographer.film M2 .
?x0 ns:film.editor.film M1 .
?x0 ns:film.editor.film M2
}