Were M2 and M4 executive produced by M3 , produced by a actor 's sibling , and produced by a sibling of M0
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 M0 .
?x1 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 ?x2 .
?x2 a ns:film.actor .
FILTER ( ?x0 != M0 ) .
FILTER ( ?x1 != ?x2 ) .
M2 ns:film.film.executive_produced_by M3 .
M2 ns:film.film.produced_by|ns:film.film.production_companies ?x0 .
M2 ns:film.film.produced_by|ns:film.film.production_companies ?x1 .
M4 ns:film.film.executive_produced_by M3 .
M4 ns:film.film.produced_by|ns:film.film.production_companies ?x0 .
M4 ns:film.film.produced_by|ns:film.film.production_companies ?x1
}