Was M2 founded by a film director , founded by M3 , and founded by a film editor
SELECT count(*) WHERE {
?x0 a ns:film.director .
?x1 a ns:film.editor .
M2 ns:organization.organization.founders ?x0 .
M2 ns:organization.organization.founders ?x1 .
M2 ns:organization.organization.founders M3
}