Did a sequel of a film star M0 and star M1 's founder
SELECT count(*) WHERE {
?x0 ns:film.film.prequel ?x1 .
?x0 ns:film.film.starring/ns:film.performance.actor ?x2 .
?x0 ns:film.film.starring/ns:film.performance.actor M0 .
?x1 a ns:film.film .
?x2 ns:organization.organization_founder.organizations_founded M1
}