Assertion: antler | /r/HasProperty | a pair of bony
Facets:
Source sentences:
text: Antlers are a pair of bony, branched structures that protrude from the frontals of the skull of animals and are shed annually; horns are also paired and protrude from the frontals, but they are permanent, unbranched, and made up of a bony core and a keratinized sheath.