Which writer of M0 and M1 did M2 employ and M3 , M4 , M5 , and M6 employ
SELECT DISTINCT ?x0 WHERE {
?x0 ns:film.writer.film M0 .
?x0 ns:film.writer.film 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 .
?x0 ns:people.person.employment_history/ns:business.employment_tenure.company M6
}