What did M1 's Mexican writer executive produce and M0 executive produce
SELECT DISTINCT ?x0 WHERE {
?x0 ns:film.film.executive_produced_by ?x1 .
?x0 ns:film.film.executive_produced_by M0 .
?x1 ns:film.writer.film M1 .
?x1 ns:people.person.nationality ns:m.0b90_r
}