Was a production company that M1 was written by founded by M2 and founded by M3 and M4
SELECT count(*) WHERE {
?x0 a ns:film.production_company .
?x0 ns:film.writer.film M1 .
?x0 ns:organization.organization.founders M2 .
?x0 ns:organization.organization.founders M3 .
?x0 ns:organization.organization.founders M4
}