Natura - nature
   actualia - actual entities
     Mundus Plinius - physical world
       Astra Plinius - celestial bodies
         Universe
           Virgo-Hydra-Centaurus Supercluster
             Virgo Supercluster
               Local Group
                 Milky Way Galaxy veter.
                   Orion Arm
                     Local Bubble
                       Local Interstellar Cloud
                         Solar System
                           Earth System
                             Earth veter.
                               "spheres" (Earth)
                                 Hydrosphere (Earth) - layer of water
                                   Atlantic Ocean Basin
                                     "Canada" (Atlantic coast)
                                       Saint Lawrence River Basin (North America)
                                         Great Lakes Basin (North America)
                                           1 Lake Ontario (North America)
                                           2.420000N0810000W Lake Erie (Canada, United States)
                                           3.1.445653N0821540W Lake Huron (Canada, United States: Michigan: Tuscola County)
                                           3.2.440030N0864524W Lake Michigan (United States: Michigan: Mason County)
                                           4 Lake Superior (North America)