Assertion: rug's knot | /r/HasProperty | the number of vertical knots
Facets:
value: across one inch of carpet
type: LOCATION
value: simply
type: MANNER
Source sentences:
text: Knot density is normally measured in knots per square inch (KPSI) which is simply the number of vertical knots across one inch of carpet multiplied by the number of horizontal knots in the same area.