Who was employed by M1 , founded M2 and M3 , and was employed by M4 's country of nationality
SELECT DISTINCT ?x0 WHERE {
?x0 a ns:people.person .
?x0 ns:organization.organization_founder.organizations_founded M2 .
?x0 ns:organization.organization_founder.organizations_founded M3 .
?x0 ns:people.person.employment_history/ns:business.employment_tenure.company ?x1 .
?x0 ns:people.person.employment_history/ns:business.employment_tenure.company M1 .
?x1 ^ns:people.person.nationality M4
}