Assertion: hickory's shell | /r/HasProperty | hard
Facets:
value: normally
type: DEGREE
value: incredibly
type: DEGREE
Source sentences:
text: Shells are incredibly hard, this is why they are not usually grown commercially for food
text: The shell is normally thick and hard but in selected cultivars it can be thin.
text: Many of the nuts begin falling on the ground early in the fall, but the shells are too hard for wildlife animals to crack until the winter rains come, and that softens the shells so that the birds and deer can eat the hickory kernels during the winter when wildlife food is so scarce.
text: The shell is hard and thick and the cracking quality is poor compared to C. ovata.