Was M2 edited by M6 , edited by a director of M0 and M1 , and written by M3 , M4 , and M5
SELECT count(*) WHERE {
?x0 ns:film.director.film M0 .
?x0 ns:film.director.film M1 .
M2 ns:film.film.edited_by ?x0 .
M2 ns:film.film.edited_by M6 .
M2 ns:film.film.written_by M3 .
M2 ns:film.film.written_by M4 .
M2 ns:film.film.written_by M5
}