Natura - nature
   actualia - actual entities
     Mundus Plinius - physical world
       Caelum veter. - region of the fixed stars
         (Constellation) Leo veter. - Leo
           (Planetary system) GJ 436
             1 (Star) GJ 436
             2 (Planet) GJ 436b R.P. Butler et al., 2004
             3 (Planet) GJ 436c I. Ribas et al., 2008