What actor that M1 and M2 employed was employed by M3 , M4 , and M5 and founded M6
SELECT DISTINCT ?x0 WHERE {
?x0 a ns:film.actor .
?x0 ns:organization.organization_founder.organizations_founded M6 .
?x0 ns:people.person.employment_history/ns:business.employment_tenure.company M1 .
?x0 ns:people.person.employment_history/ns:business.employment_tenure.company M2 .
?x0 ns:people.person.employment_history/ns:business.employment_tenure.company M3 .
?x0 ns:people.person.employment_history/ns:business.employment_tenure.company M4 .
?x0 ns:people.person.employment_history/ns:business.employment_tenure.company M5
}