Was M2 edited by a Mexican film producer 's parent and edited by M3
SELECT count(*) WHERE {
?x0 ns:people.person.children|ns:fictional_universe.fictional_character.children|ns:organization.organization.child/ns:organization.organization_relationship.child ?x1 .
?x1 a ns:film.producer .
?x1 ns:people.person.nationality ns:m.0b90_r .
M2 ns:film.film.edited_by ?x0 .
M2 ns:film.film.edited_by M3
}