Was a prequel of M0 executive produced by a founder of M1 and edited by a person
SELECT count(*) WHERE {
?x0 ns:film.film.edited_by ?x1 .
?x0 ns:film.film.executive_produced_by ?x2 .
?x0 ns:film.film.sequel M0 .
?x1 a ns:people.person .
?x2 ns:organization.organization_founder.organizations_founded M1
}