Assertion: ounce's grain | /r/HasProperty | the same
Facets:
Source sentences:
text: This number of grains comes from the traditional weight of an English silver penny of 22½ grains (Troy, or grains of barley - the same as 30 grains of wheat), and 240 pennies to the pound.
text: The grain is the same unit of measure used in the avoirdupois unit of weight system.