Did a Mexican person write , executive produce , edit , and direct M1
SELECT count(*) WHERE {
?x0 a ns:people.person .
?x0 ns:film.director.film M1 .
?x0 ns:film.editor.film M1 .
?x0 ns:film.producer.films_executive_produced M1 .
?x0 ns:film.writer.film M1 .
?x0 ns:people.person.nationality ns:m.0b90_r
}