Commentary:
NOTE: may be metaphorical.
Examples:
The wood slivered when John struck it.
My hopes slivered in front of me.
She slivered the lead in her pencil.
Mappings:
VerbNet: break-45.1
FrameNet: Cause_to_fragment
PropBank: sliver.01
WordNet 3.0 Sense Numbers: 1, 2, 3