Assertion: hoatzin's crest | /r/HasProperty | spiky
Facets:
Source sentences:
text: Hoatzins have small heads, spiky crests and long necks, and are mostly brown, with lighter feathers along their bellies and throats.
text: Hoatzins have small heads, spiky crests, and long necks, and are mostly brown, with lighter feathers along their bellies and throats.