Assertion: crampon's boot | /r/HasAspect | groove
Facets:
value: on toe
type: LOCATION
value: on the heel
type: LOCATION
Source sentences:
text: If the boot has a groove, they will work with step-in crampons that have a toe bail (bar) that fits into the groove and when the heel binding is closed, will lock the toe bail in place.
text: For this system, boots should have rigid soles and at least a 3/8" welt or groove on the heel and toe.