Assertion: snake's mouth | /r/HasProperty | black
Facets:
Source sentences:
text: When threatened, it spreads its neck flap, exposes its black mouth and hisses with a prominent sound.
text: When threatened, it spreads its neck flap, exposes its black mouth and hisses with a prominent sound.
text: However, when cornered, these snakes will raise their heads, sometimes with a third of their body off the ground, spread their cobra-like neck-flap, open their black mouths, and hiss.
text: However, when cornered, these snakes will raise their heads, sometimes with a third of their body off the ground, spread their cobra-like neck-flap, open their black mouths, and hiss.