Did M1 and M2 influence a film 's producer 's sibling
SELECT count(*) WHERE {
?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 ?x1 .
?x1 ns:film.producer.film|ns:film.production_company.films ?x2 .
?x2 a ns:film.film .
FILTER ( ?x0 != ?x1 ) .
M1 ns:influence.influence_node.influenced ?x0 .
M2 ns:influence.influence_node.influenced ?x0
}