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) North America
                                           (Country) United States (1776-present)
                                             (Region) Midwest (United States)
                                               (Division) West North Central (United States)
                                                 1.1 (State) North Dakota (United States)
                                                 1.2 (State) South Dakota (United States)
                                                 1.3 (State) Nebraska (United States)
                                                 1.4 (State) Kansas (United States)
                                                 2.1 (State) Minnesota (United States)
                                                 2.2 (State) Iowa (United States)
                                                 2.3 (State) Missouri (United States)