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)
                                   (Oceanic basin) "Indian Basin" (Indian Ocean)
                                     01 (Archipelago) Socotra
                                     02.043500S0554000E (Archipelago) Seychelles (Indian Ocean)
                                     03.121000S0441500E (Archipelago) Comoro Islands (Comoros, Mayotte)
                                     04 (Island) Europa Island
                                     05 (Island) Madagascar
                                     06.200000S0570000E (Archipelago) Mascarene Islands (Indian Ocean)
                                     08.1 (Archipelago) Laccadive Islands
                                     08.2 (Archipelago) Maldives
                                     09 "Andaman and Nicobar Islands" (India)
                                     10.100000S0800000E (Undersea basin) Mid-Indian Basin (Indian Ocean)
                                     11.0.210000S1000000E (Undersea basin) Wharton Basin (Indian Ocean)
                                     11.1.050000S0940000E (Undersea basin) Cocos Basin (Undersea Features)
                                     11.2.103000S1100000E (Undersea trench) Java Trench (Undersea Features)
                                     11.3.143000S1163000E (Undersea basin) North Australian Basin (Undersea Features)
                                     11.4.190000S1140000E (Undersea plateau) Exmouth Plateau (Undersea Features)
                                     11.5.0.283000S1100000E (Undersea basin) Perth Basin (Undersea Features)
                                     11.5.1.270000S0991500E (Undersea ridge) East Indiaman Ridge (Undersea Features)
                                     11.5.2.340000S1111500E (Undersea plateau) Naturaliste Plateau (Undersea Features)
                                     12.1 (Archipelago) Prince Edward Islands (Indian Ocean)
                                     12.2.460000S0510000E (Undersea plateau) Crozet Plateau
                                     13 (Archipelago) Kerguelen