Assertion: black mamba | /r/HasProperty | graceful
Facets:
Source sentences:
text: The black mamba is graceful but skittish and often unpredictable.
text: The black mamba is graceful but skittish and often unpredictable.
text: The black mamba is graceful but skittish and often unpredictable.
text: The black mamba is graceful but skittish and often unpredictable.