question: What did a screenwriter executive produce and a Canadian screenwriter 's child edit
query: SELECT DISTINCT ?x0 WHERE {
  ?x0 ns:film.film.edited_by ?x1 .
  ?x0 ns:film.film.executive_produced_by ?x2 .
  ?x1 ns:people.person.parents|ns:fictional_universe.fictional_character.parents|ns:organization.organization.parent/ns:organization.organization_relationship.parent ?x3 .
  ?x2 a ns:film.writer .
  ?x3 a ns:film.writer .
  ?x3 ns:people.person.nationality ns:m.0d060g
  }