Assertion: chess set's chess piece | /r/AtLocation | use
Facets:
value: at the time
type: TEMPORAL
Source sentences:
text: Although the standard chess set for international competition has been the same Staunton pattern pieces for the last one and a half centuries, there are many other traditional styles of chess pieces that were in use before the Staunton set became the standard, ranging from the elegant Northern Upright pieces to the iconic characters of the Isle of Lewis chess set.
text: While the variety and styles of chess pieces that were in use at the time were extensive, they were decorative in nature and considered unsuitable for play.