Was a film written by M1 and written by M2 's editor and cinematographer
SELECT count(*) WHERE {
?x0 a ns:film.film .
?x0 ns:film.film.written_by ?x1 .
?x0 ns:film.film.written_by M1 .
?x1 ns:film.cinematographer.film M2 .
?x1 ns:film.editor.film M2
}