Was M0 's prequel written by , produced by , and edited by a writer of M1
SELECT count(*) WHERE {
?x0 ns:film.film.edited_by ?x1 .
?x0 ns:film.film.produced_by|ns:film.film.production_companies ?x1 .
?x0 ns:film.film.sequel M0 .
?x0 ns:film.film.written_by ?x1 .
?x1 ns:film.writer.film M1
}