Assertion: african elephant's tusk | /r/HasProperty | helpful
Facets:
value: both
type: DEGREE
value: for digging holes
type: PURPOSE
Source sentences:
text: Elephants have big tusks that protect their trunks and are helpful for digging holes.
text: ’s tusks are both fearsome weapons and useful tools.
text: The tusks are used for protection and a tool for digging.