Did M2 star a film editor , star M1 's founder , and star M3
SELECT count(*) WHERE {
?x0 a ns:film.editor .
?x1 ns:organization.organization_founder.organizations_founded M1 .
M2 ns:film.film.starring/ns:film.performance.actor ?x0 .
M2 ns:film.film.starring/ns:film.performance.actor ?x1 .
M2 ns:film.film.starring/ns:film.performance.actor M3
}