Was M1 written by a actor 's sibling , executive produced by M2 , M3 , and M4 , and executive produced by M5
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.actor .
FILTER ( ?x0 != ?x1 ) .
M1 ns:film.film.executive_produced_by M2 .
M1 ns:film.film.executive_produced_by M3 .
M1 ns:film.film.executive_produced_by M4 .
M1 ns:film.film.executive_produced_by M5 .
M1 ns:film.film.written_by ?x0
}