question: What American male writer of M0 was employed by M1 , M2 , and M3 and employed by a production company
query: SELECT DISTINCT ?x0 WHERE {
  ?x0 ns:film.writer.film M0 .
  ?x0 ns:people.person.employment_history/ns:business.employment_tenure.company ?x1 .
  ?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.gender ns:m.05zppz .
  ?x0 ns:people.person.nationality ns:m.09c7w0 .
  ?x1 a ns:film.production_company
  }