Was M3 edited by and executive produced by a Mexican writer of M0 and M1
SELECT count(*) WHERE {
?x0 ns:film.writer.film M0 .
?x0 ns:film.writer.film M1 .
?x0 ns:people.person.nationality ns:m.0b90_r .
M3 ns:film.film.edited_by ?x0 .
M3 ns:film.film.executive_produced_by ?x0
}