Was M2 executive produced by a cinematographer of M0 , executive produced by M3 and M4 , and executive produced by M1 's sibling
SELECT count(*) WHERE {
?x0 ns:film.cinematographer.film 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 M1 .
FILTER ( ?x1 != M1 ) .
M2 ns:film.film.executive_produced_by ?x0 .
M2 ns:film.film.executive_produced_by ?x1 .
M2 ns:film.film.executive_produced_by M3 .
M2 ns:film.film.executive_produced_by M4
}