Did M3 and M4 star a cinematographer that founded M1 and M2
SELECT count(*) WHERE {
?x0 a ns:film.cinematographer .
?x0 ns:organization.organization_founder.organizations_founded M1 .
?x0 ns:organization.organization_founder.organizations_founded M2 .
M3 ns:film.film.starring/ns:film.performance.actor ?x0 .
M4 ns:film.film.starring/ns:film.performance.actor ?x0
}