Was a film producer that M0 , M1 , and M2 founded M3 's producer
SELECT count(*) WHERE {
?x0 ns:film.producer.film|ns:film.production_company.films M3 .
?x0 ns:organization.organization.founders M0 .
?x0 ns:organization.organization.founders M1 .
?x0 ns:organization.organization.founders M2
}