Assertion: carabiner | /r/CapableOf | connect rope
Facets:
value: to pitons
type: LOCATION
Source sentences:
text: In 1957, using tools salvaged from a junkyard, Chouinard taught himself blacksmithing in order to forge his own mountaineering equipment, such as pitons (the spikes driven into rocks) and carabiners (which connect ropes to pitons).