Assertion: ball | /r/ObjectUse | used in sport
Facets:
value: prior to columbus
type: TEMPORAL
Source sentences:
text: Balls used in sports come in all sizes, masses and materials.
text: At the time there was a severe shortage of rubber needed to make the balls used in many sports.
text: Balls used in various sports in other parts of the world prior to Columbus were made from other materials such as animal bladders or skins, stuffed with various materials.