Was a female sibling of M0 's writer M1
SELECT count(*) WHERE {
?x0 ns:film.writer.film M0 .
FILTER ( M1 != ?x0 ) .
M1 ns:people.person.gender ns:m.02zsn .
M1 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
}