Assertion: indian rhinoceros's horn | /r/HasProperty | keratin
Facets:
value: the same substance that makes
type: OTHER
value: entirely
type: DEGREE
Source sentences:
text: Rhinoceroses are characterized by the possession of one or two horns on the upper surface of the snout; these horns are not true horns but are composed of keratin, a fibrous protein found in hair.
text: What's ironic is that the horn of a rhinoceros is composed entirely of keratin, the same substance that makes up human hair and fingernails.