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) Mississippi River Basin (United States, Canada)
                                           (Drainage basin) Ohio River Basin (United States)
                                             0.365912N0890750W (Stream) Ohio River (United States: Pennsylvania, Ohio, West Virginia, Kentucky, Indiana, Illinois)
                                             1t.0.370402N0883353W (Stream) Tennessee River (United States: Tennessee, Alabama, Mississippi, Kentucky)
                                             1t.s1.355733N0835101W (Stream) Holston River (United States: Virginia, Tennessee)
                                             1t.s2.355733N0835101W (Stream) French Broad River (United States: Tennessee: Knox County)
                                             2t.370836N0882427W (Stream) Cumberland River (United States: Kentucky: Livingston County)
                                             3t.374753N0880138W (Stream) Wabash River (United States: Indiana: Posey County)
                                             4t.375409N0872959W (Stream) Green River (United States: Kentucky: Henderson County)
                                             5t.384100N0851118W (Stream) Kentucky River (United States: Kentucky)
                                             6t.384350N0830046W (Stream) Scioto River (United States: Ohio: Scioto County)
                                             7t.0.385016N0820834W (Stream) Kanawha River (United States: West Virginia: Fayette County)
                                             7t.s1.380942N0811147W (Stream) New River (United States: North Carolina, Virginia, West Virginia: Fayette County)
                                             7t.s2.380942N0811146W (Stream) Gauley River (United States: West Virginia: Fayette County)
                                             s1.402636N0800054W (Stream) Allegheny River (United States: Pennsylvania: Allegheny County)
                                             s2.402630N0800058W (Stream) Monongahela River (United States: Pennsylvania: Allegheny County)