Were M1 and M2 executive produced by a screenwriter and edited by a screenwriter
SELECT count(*) WHERE {
?x0 a ns:film.writer .
?x1 a ns:film.writer .
M1 ns:film.film.edited_by ?x1 .
M1 ns:film.film.executive_produced_by ?x0 .
M2 ns:film.film.edited_by ?x1 .
M2 ns:film.film.executive_produced_by ?x0
}