Assertion: sporting gunpowder | /r/HasProperty | long
Facets:
value: under the runners
type: LOCATION
Source sentences:
text: For good fine-grain powders it varies from four to eight hours, but the very best sporting gunpowder is said to be as long as twelve hours under the runners ; blasting and cannon powders are incorporated from two to four hours, the period being rather longer where the lighter stone runners are used.