Was a sequel of M1 edited by M0 and written by a cinematographer and editor of M2
SELECT count(*) WHERE {
?x0 ns:film.film.edited_by M0 .
?x0 ns:film.film.prequel M1 .
?x0 ns:film.film.written_by ?x1 .
?x1 ns:film.cinematographer.film M2 .
?x1 ns:film.editor.film M2
}