Assertion: curling | /r/HasProperty | been olympic sport
Facets:
value: since 1998
type: TEMPORAL
Source sentences:
text: Curling is hugely popular in Canada, and it's only been an Olympic sport since 1998, but its roots lie in medieval Scotland, where it once was known as "the roaring game" -- because that's the sound you hear as a curling stone rolls down the ice.