question: Was M4 executive produced by a sibling of M0 and directed by a editor of M1 , M2 , and M3
query: SELECT count(*) WHERE {
  ?x0 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 M0 .
  ?x1 ns:film.editor.film M1 .
  ?x1 ns:film.editor.film M2 .
  ?x1 ns:film.editor.film M3 .
  FILTER ( ?x0 != M0 ) .
  M4 ns:film.film.directed_by ?x1 .
  M4 ns:film.film.executive_produced_by ?x0
  }