question: Was M2 directed by a film producer whose sibling was influenced by M1 and edited by M3
query: SELECT count(*) WHERE {
  ?x0 a ns:film.producer .
  ?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 ?x1 .
  ?x1 ns:influence.influence_node.influenced_by M1 .
  FILTER ( ?x0 != ?x1 ) .
  M2 ns:film.film.directed_by ?x0 .
  M2 ns:film.film.edited_by M3
  }