Did M1 and M5 found a employer of M0 , found M2 and M3 , and found M4
SELECT count(*) WHERE {
?x0 ns:business.employer.employees/ns:business.employment_tenure.person M0 .
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
}