What company whose founder founded M2 , founded M3 , and founded M4 and M5 employed M1
SELECT DISTINCT ?x0 WHERE {
?x0 a ns:business.employer .
?x0 ns:business.employer.employees/ns:business.employment_tenure.person M1 .
?x0 ns:organization.organization.founders ?x1 .
?x1 ns:organization.organization_founder.organizations_founded M2 .
?x1 ns:organization.organization_founder.organizations_founded M3 .
?x1 ns:organization.organization_founder.organizations_founded M4 .
?x1 ns:organization.organization_founder.organizations_founded M5
}