Assertion: ball | /r/CapableOf | play tag
Facets:
value: to amazement
type: MANNER
value: in front
type: LOCATION
value: for half an hour
type: TEMPORAL
Source sentences:
text: In front of, above and around the new Hall of Engineering of the School of Mines, balls of fire played tag for half an hour, to the wonder and amazement of all who saw the display.