question: Was a film editor whose sibling wrote M0 , M1 , and M2 and executive produced M3 , M4 , and M5 M6
query: SELECT count(*) WHERE {
  ?x0 ns:film.producer.films_executive_produced M3 .
  ?x0 ns:film.producer.films_executive_produced M4 .
  ?x0 ns:film.producer.films_executive_produced M5 .
  ?x0 ns:film.writer.film M0 .
  ?x0 ns:film.writer.film M1 .
  ?x0 ns:film.writer.film M2 .
  FILTER ( M6 != ?x0 ) .
  M6 a ns:film.editor .
  M6 ns:people.person.sibling_s/ns:people.sibling_relationship.sibling|ns:fictional_universe.fictional_character.siblings/ns:fictional_universe.sibling_relationship_of_fictional_characters.siblings ?x0
  }