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) "surface" (Earth)
                                   (Continent) Australia
                                     "Australia"
                                       (Mainland) Australia
                                         "South Australia" (Australia; mainland)
                                           >304500>1290000 (Plain) Nullarbor Plain (Australia: Western Australia, South Australia)
                                           >342000>1354500 (Peninsula) Eyre Peninsula (Australia: South Australia)