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Organism
  Animalia
      Chordata
        Vertebrata
            Amphibia
                    Anura
                            Ranidae
                                     Lithobates
                                             Lithobates bwana
                                                   [Rana bwana]
                                             Lithobates catesbeianus
                                                   [Rana catesbeiana]
                                             Lithobates palmipes
                                                   [Rana palmipes]
                                     Rana