Assertion: viper's bite | /r/HasSubevent | the need
Facets:
value: after prompt treatment
type: TEMPORAL
value: frequently
type: TEMPORAL
Source sentences:
text: Bites from such snakes frequently result in the need to amputate limbs, even after prompt treatment.
text: Nonfatal bites from venomous snakes may result in the need for amputation of a limb or part thereof.