Were M2 and M6 founded by a executive producer of M0 and M1 , founded by M3 , and founded by M4 and M5
SELECT count(*) WHERE {
?x0 ns:film.producer.films_executive_produced M0 .
?x0 ns:film.producer.films_executive_produced M1 .
M2 ns:organization.organization.founders ?x0 .
M2 ns:organization.organization.founders M3 .
M2 ns:organization.organization.founders M4 .
M2 ns:organization.organization.founders M5 .
M6 ns:organization.organization.founders ?x0 .
M6 ns:organization.organization.founders M3 .
M6 ns:organization.organization.founders M4 .
M6 ns:organization.organization.founders M5
}