Was M1 written by M2 and M3 , directed by a film director 's sibling , and edited by M4
SELECT count(*) WHERE {
?x0 ns:people.person.sibling_s/ns:people.sibling_relationship.sibling|ns:fictional_universe.fictional_character.siblings/ns:fictional_universe.sibling_relationship_of_fictional_characters.siblings ?x1 .
?x1 a ns:film.director .
FILTER ( ?x0 != ?x1 ) .
M1 ns:film.film.directed_by ?x0 .
M1 ns:film.film.edited_by M4 .
M1 ns:film.film.written_by M2 .
M1 ns:film.film.written_by M3
}