Assertion: black mamba | /r/CapableOf | use their eyes
Facets:
value: to detect motion
type: PURPOSE
Source sentences:
text: They use their eyes to detect motion, and if it is sudden they will attack.
text: They use their eyes to detect motion, and if it is sudden they will attack.
text: They use their eyes to detect motion, and if it is sudden they will attack.
text: They use their eyes to detect motion, and if it is sudden they will attack.