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) Old World
                                         (Region) Africa
                                           (Region) Central Africa
                                             (Country) Cameroon (1960-present)
                                               (Region) Adamaoua (Cameroon)
                                               (Region) Centre (Cameroon)
                                               (Region) Est (Cameroon)
                                               (Region) Extreme-Nord (Cameroon)
                                               (Region) Littoral (Cameroon)
                                               (Region) Nord (Cameroon)
                                               (Region) North-West (=Nord-Ouest; Cameroon)
                                               (Region) Ouest (Cameroon)
                                               (Region) South-West (=Sud-Ouest; Cameroon)
                                               (Region) Sud (Cameroon)