Assertion: ballpoint pen's ball | /r/AtLocation | place
Facets:
value: by a socket
type: OTHER
value: between the paper
type: LOCATION
value: between the ink reservoir
type: LOCATION
Source sentences:
text: The ball is kept in place -- between the ink reservoir and the paper -- by a socket; and while it is in tight, it still has enough room to roll around as you write.