Were M1 and M4 executive produced by M2 , edited by a sibling of a writer of M0 , and written by M3
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 ns:film.writer.film M0 .
FILTER ( ?x0 != ?x1 ) .
M1 ns:film.film.edited_by ?x0 .
M1 ns:film.film.executive_produced_by M2 .
M1 ns:film.film.written_by M3 .
M4 ns:film.film.edited_by ?x0 .
M4 ns:film.film.executive_produced_by M2 .
M4 ns:film.film.written_by M3
}