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) Pacific Ocean
                                         (Region) Oceania
                                           (Region) Pacific Islands
                                             (Region) Melanesia (Oceania)
                                               (Country) Papua New Guinea (1975-present)
                                                 (Autonomous region) Bougainville (Papua New Guinea)
                                                 (Province) Central (Papua New Guinea)
                                                 (Province) Chimbu (Papua New Guinea)
                                                 (Province) East New Britain (Papua New Guinea)
                                                 (Province) East Sepik (Papua New Guinea)
                                                 (Province) Eastern Highlands (Papua New Guinea)
                                                 (Province) Enga (Papua New Guinea)
                                                 (Province) Gulf (Papua New Guinea)
                                                 (Province) Hela (Papua New Guinea: 2012-present)
                                                 (Province) Jiwaka (Papua New Guinea: 2012-present)
                                                 (Province) Madang (Papua New Guinea)
                                                 (Province) Manus (Papua New Guinea)
                                                 (Province) Milne Bay (Papua New Guinea)
                                                 (Province) Morobe (Papua New Guinea)
                                                 (District) National Capital (Papua New Guinea)
                                                 (Province) New Ireland (Papua New Guinea)
                                                 (Province) Northern (Papua New Guinea)
                                                 (Province) Southern Highlands (Papua New Guinea)
                                                 (Province) West New Britain (Papua New Guinea)
                                                 (Province) West Sepik (Papua New Guinea)
                                                 (Province) Western (Papua New Guinea)
                                                 (Province) Western Highlands (Papua New Guinea)