Were M3 and M5 written by M4 and written by M0 's French Italian sibling
SELECT count(*) WHERE {
?x0 ns:people.person.nationality ns:m.03rjj .
?x0 ns:people.person.nationality ns:m.0f8l9c .
?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 .
FILTER ( ?x0 != M0 ) .
M3 ns:film.film.written_by ?x0 .
M3 ns:film.film.written_by M4 .
M5 ns:film.film.written_by ?x0 .
M5 ns:film.film.written_by M4
}