Who directed M1 , M2 , and M3 , directed M4 , directed M5 , and directed M6
SELECT DISTINCT ?x0 WHERE {
?x0 a ns:people.person .
?x0 ns:film.director.film M1 .
?x0 ns:film.director.film M2 .
?x0 ns:film.director.film M3 .
?x0 ns:film.director.film M4 .
?x0 ns:film.director.film M5 .
?x0 ns:film.director.film M6
}