Assertion: idler sprocket | /r/MadeOf | steel
Facets:
value: often
type: TEMPORAL
Source sentences:
text: Countershaft sprockets are often made of steel; they need to be durable and their small-size means weight is usually not an issue.
text: Countershaft sprockets are often made of steel; they need to be durable and their small-size means weight is usually not an issue.