text: https://en.wikipedia.org/wiki/El_Valle_de_Altomira is missing from admin-level 8 relations.
  As per https://osm.wno-edv-service.de/boundaries/ I could deduct that this must be a missing area in admin-level 6 349024 (Cuenca) outer border (West) and admin level 8's: 348868 (Buendía), 342705 (Huete), 345640 (Saceda-Trasierra),344289 (Vellisca), 344287 (Villalba del Rey).