Assertion: canadian curler | /r/CapableOf | use iron
Facets:
value: often
type: TEMPORAL
value: until the early 1900s
type: TEMPORAL
Source sentences:
text: Central Canadian curlers often used 'irons' rather than stones until the early 1900s; Canada is the only country known to have done so, while others experimented with wood or ice-filled tins.