Natura - nature
   actualia - actual entities
     Mundus Plinius - physical world
       Caelum veter. - region of the fixed stars
         (Constellation) Ursa Major veter. - UMa
           (Star system) ζ Ursae Majoris - Mizar
             132355.5+545531 (Star) ζ Ursae Majoris A
             132356.4+545518 (Star) ζ Ursae Majoris B