Assertion: ballpoint pen | /r/HasProperty | a writing instrument
Facets:
value: with a tip
type: OTHER
Source sentences:
text: Ballpoint pen (also “biro” and “ball pen”) is a writing instrument that has a metal ball at its point which rolls and moves ink from an internal reservoir to the surface on which pen writes and, at the same time, works as a buffer between the ink in the reservoir and the air outside and protects this ink from drying.
text: A ballpoint pen is a writing instrument which features a tip that is automatically refreshed with ink.
text: A ballpoint pen is a writing instrument with a tip that is continuously supplied with ink.
text: A ballpoint pen is a writing instrument which dispenses a viscous ink from an internal reservoir through the rolling action of a metal ball at its point.