Did M1 , M5 , and M6 found M2 , found M3 and M4 , and found a screenwriter 's employer
SELECT count(*) WHERE {
?x0 ns:business.employer.employees/ns:business.employment_tenure.person ?x1 .
?x1 a ns:film.writer .
M1 ns:organization.organization_founder.organizations_founded ?x0 .
M1 ns:organization.organization_founder.organizations_founded M2 .
M1 ns:organization.organization_founder.organizations_founded M3 .
M1 ns:organization.organization_founder.organizations_founded M4 .
M5 ns:organization.organization_founder.organizations_founded ?x0 .
M5 ns:organization.organization_founder.organizations_founded M2 .
M5 ns:organization.organization_founder.organizations_founded M3 .
M5 ns:organization.organization_founder.organizations_founded M4 .
M6 ns:organization.organization_founder.organizations_founded ?x0 .
M6 ns:organization.organization_founder.organizations_founded M2 .
M6 ns:organization.organization_founder.organizations_founded M3 .
M6 ns:organization.organization_founder.organizations_founded M4
}