Was M2 founded by M3 , founded by a actor , founded by M1 's writer , and founded by M4
SELECT count(*) WHERE {
?x0 a ns:film.actor .
?x1 ns:film.writer.film M1 .
M2 ns:organization.organization.founders ?x0 .
M2 ns:organization.organization.founders ?x1 .
M2 ns:organization.organization.founders M3 .
M2 ns:organization.organization.founders M4
}