Were M2 and M3 directed by a film editor 's sibling and directed by a film director 's sibling
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 .
?x2 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 ?x3 .
?x3 a ns:film.editor .
FILTER ( ?x0 != ?x1 ) .
FILTER ( ?x2 != ?x3 ) .
M2 ns:film.film.directed_by ?x0 .
M2 ns:film.film.directed_by ?x2 .
M3 ns:film.film.directed_by ?x0 .
M3 ns:film.film.directed_by ?x2
}