Was a art director that founded M2 and M3 and founded M4 a film editor
SELECT count(*) WHERE {
?x0 a ns:film.editor .
?x0 a ns:film.film_art_director .
?x0 ns:organization.organization_founder.organizations_founded M2 .
?x0 ns:organization.organization_founder.organizations_founded M3 .
?x0 ns:organization.organization_founder.organizations_founded M4
}