Were M1 , M3 , and M4 founded by M2 and founded by a executive producer of M0 's sequel
SELECT count(*) WHERE {
?x0 ns:film.producer.films_executive_produced ?x1 .
?x1 ns:film.film.prequel M0 .
M1 ns:organization.organization.founders ?x0 .
M1 ns:organization.organization.founders M2 .
M3 ns:organization.organization.founders ?x0 .
M3 ns:organization.organization.founders M2 .
M4 ns:organization.organization.founders ?x0 .
M4 ns:organization.organization.founders M2
}