Did M1 's sibling 's actor marry M0 and marry a production company 's employee
SELECT count(*) WHERE {
?x0 ns:film.actor.film/ns:film.performance.character ?x1 .
?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 ?x2 .
?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 M0 .
?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 M1 .
?x2 ns:people.person.employment_history/ns:business.employment_tenure.company ?x3 .
?x3 a ns:film.production_company .
FILTER ( ?x0 != ?x2 ) .
FILTER ( ?x0 != M0 ) .
FILTER ( ?x1 != M1 )
}