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) Hydrosphere (Earth) - layer of water
                                   (Drainage basin) Atlantic Ocean Basin
                                     (Drainage basin) American Mediterranean Sea Basin (America)
                                       (Drainage basin) Gulf of Mexico Basin
                                         Drainage basin Lake Pontchartrain Basin (United States: Louisiana)
                                           (Drainage basin) Lake Maurepas Basin (United States: Louisiana, Mississippi)
                                             0.301508N0903006W (Lake) Lake Maurepas (United States: Louisiana: Livingston Parish)
                                             1t1 (Drainage basin) Dutch Bayou Basin (United States: Louisiana: St. John the Baptist Parish)
                                             1t2 (Drainage basin) Blind River Basin (United States: Louisiana: St. John the Baptist Parish)
                                             2t (Drainage basin) Amite River Basin (United States: Louisiana, Mississippi)
                                             3t (Drainage basin) Tickfaw River Basin (United States: Louisiana, Mississippi)