Assertion: ballpoint pen's ball | /r/CapableOf | roll ink
Facets:
value: across the page
type: LOCATION
Source sentences:
text: When the pen was pressed on, it would cause the ball to roll and transfer ink to the paper (Goad, 2012).
text: Rollerballs work like a ballpoint, with a small suspended ball that rolls the ink across the page.
text: The ball rotates freely and rolls out the ink as it is continuously fed from the ink reservoir (usually a narrow plastic tube filled with ink).