Who was a film producer employed by M2 , M3 , and M4 and employed by M5 , M6 , M7 , and M8
SELECT DISTINCT ?x0 WHERE {
?x0 a ns:film.producer .
?x0 a ns:people.person .
?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 .
?x0 ns:people.person.employment_history/ns:business.employment_tenure.company M6 .
?x0 ns:people.person.employment_history/ns:business.employment_tenure.company M7 .
?x0 ns:people.person.employment_history/ns:business.employment_tenure.company M8
}