Was M1 founded by M2 and M3 , founded by M4 and M5 , and founded by a screenwriter
SELECT count(*) WHERE {
?x0 a ns:film.writer .
M1 ns:organization.organization.founders ?x0 .
M1 ns:organization.organization.founders M2 .
M1 ns:organization.organization.founders M3 .
M1 ns:organization.organization.founders M4 .
M1 ns:organization.organization.founders M5
}