Natura - nature
   actualia - actual entities
     Mundus Plinius - physical world
       Astra Plinius - celestial bodies
         Universe
           (Supercluster) Virgo-Hydra-Centaurus Supercluster
             (Supercluster) Virgo Supercluster
               (Cluster) Local Group
                 (Galaxy) Milky Way Galaxy veter.
                   (Spiral arm) Orion Arm
                     (Region) Local Bubble
                       Local Interstellar Cloud
                         (Planetary system) Solar System
                           (Planet-satellite system) Earth System
                             (Planet) Earth veter.
                               "spheres" (Earth)
                                 (Sphere) Biosphere (Earth) - zone of life
                                   "geopolitical regions"
                                     (Region) World
                                       (Region) Americas
                                         (Region) South America
                                           (Country) Argentina (1816-present)
                                             (Province) Buenos Aires (Argentina)
                                             (Province) Catamarca (Argentina)
                                             (Province) Chaco (Argentina)
                                             (Province) Chubut (Argentina)
                                             (Autonomous city [pop. 1m - 5m]) Ciudad Autonoma de Buenos Aires (Argentina)
                                             (Province) Cordoba (Argentina)
                                             (Province) Corrientes (Argentina)
                                             (Province) Entre Rios (Argentina)
                                             (Province) Formosa (Argentina)
                                             (Province) Jujuy (Argentina)
                                             (Province) La Pampa (Argentina)
                                             (Province) La Rioja (Argentina)
                                             (Province) Mendoza (Argentina)
                                             (Province) Misiones (Argentina)
                                             (Province) Neuquén (Argentina)
                                             (Province) Rio Negro (Argentina)
                                             (Province) Salta (Argentina)
                                             (Province) San Juan (Argentina)
                                             (Province) San Luis (Argentina)
                                             (Province) Santa Cruz (Argentina)
                                             (Province) Santa Fe (Argentina)
                                             (Province) Santiago del Estero (Argentina)
                                             (Province) Tierra del Fuego - Antartida e Islas del Atlantico Sur (Argentina)
                                             (Province) Tucuman (Argentina)