Assertion: cart | /r/AtLocation | the 4th millennium bc
Facets:
value: since the invention of the wheel
type: TEMPORAL
Source sentences:
text: They have been in continuous use since the invention of the wheel, in the 4th millennium BC.
text: They have been in continuous use since the invention of the wheel, in the 4th millennium BC.
text: They have been in continuous use since the invention of the wheel, in the 4th millennium BC.