Input (grade 13): The genus contains two species, the Indian Rhinoceros (Rhinoceros unicornis) and the Javan Rhinoceros (Rhinoceros sondaicus).
Output (grade 10): The genus Rhinoceros of the family Rhinocerotidae includes the one-horned rhinoceroses, of which there are two extant species: the Indian rhinoceros (R. unicornis) and the Javan rhinoceros (R. sondaicus).