Was M4 a film editor whose sibling executive produced M1 , directed M2 and M3 , and edited M0
SELECT count(*) WHERE {
?x0 ns:film.director.film M2 .
?x0 ns:film.director.film M3 .
?x0 ns:film.editor.film M0 .
?x0 ns:film.producer.films_executive_produced M1 .
FILTER ( M4 != ?x0 ) .
M4 a ns:film.editor .
M4 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 ?x0
}