Was a film 's male producer 's sibling 's spouse a Mexican sibling of M0
SELECT count(*) WHERE {
?x0 ns:people.person.nationality ns:m.0b90_r .
?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 .
?x0 ns:people.person.spouse_s/ns:people.marriage.spouse|ns:fictional_universe.fictional_character.married_to/ns:fictional_universe.marriage_of_fictional_characters.spouses ?x1 .
?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 ?x2 .
?x2 ns:film.producer.film|ns:film.production_company.films ?x3 .
?x2 ns:people.person.gender ns:m.05zppz .
?x3 a ns:film.film .
FILTER ( ?x0 != ?x1 ) .
FILTER ( ?x0 != M0 ) .
FILTER ( ?x1 != ?x2 )
}