Assertion: snake | /r/HasProperty | threatened
Facets:
Source sentences:
text: The snakes are not aggressive unless they or their nest are threatened, but it's best to leave them alone.
text: When the snakes are threatened and near bodies of water, they will often swim away quickly to avoid danger.
text: When the snake is threatened, it tries to escape.
text: If the snake believes it is threatened it will typically vibrate its tail in patches of grass in order to mimic the sound a rattlesnake makes.