question: Which film editor that produced M2 's prequel founded M1
query: SELECT DISTINCT ?x0 WHERE {
  ?x0 a ns:film.editor .
  ?x0 ns:film.producer.film|ns:film.production_company.films ?x1 .
  ?x0 ns:organization.organization_founder.organizations_founded M1 .
  ?x1 ns:film.film.sequel M2
  }