Who was a Mexican screenwriter that wrote M2 and M3 , wrote M4 , and directed M6
SELECT DISTINCT ?x0 WHERE {
?x0 a ns:film.writer .
?x0 a ns:people.person .
?x0 ns:film.director.film M6 .
?x0 ns:film.writer.film M2 .
?x0 ns:film.writer.film M3 .
?x0 ns:film.writer.film M4 .
?x0 ns:people.person.nationality ns:m.0b90_r
}