Was M1 a film whose sequel was directed , edited , produced , executive produced , and written by a film editor
SELECT count(*) WHERE {
?x0 ns:film.film.directed_by ?x1 .
?x0 ns:film.film.edited_by ?x1 .
?x0 ns:film.film.executive_produced_by ?x1 .
?x0 ns:film.film.produced_by|ns:film.film.production_companies ?x1 .
?x0 ns:film.film.written_by ?x1 .
?x1 a ns:film.editor .
M1 a ns:film.film .
M1 ns:film.film.sequel ?x0
}