question: What did a production company that M1 and M2 founded write
query: SELECT DISTINCT ?x0 WHERE {
  ?x0 ns:film.film.written_by ?x1 .
  ?x1 a ns:film.production_company .
  ?x1 ns:organization.organization.founders M1 .
  ?x1 ns:organization.organization.founders M2
  }