Assertion: excavation | /r/HasProperty | hole
Facets:
Source sentences:
text: excavation is a hole left in the ground as the result of removing material.
text: excavation is a hole left in the ground as the result of removing material.
text: An excavation is a hole left in the ground as the result of removing material.
text: The Bingham Canyon open-pit copper mine is the largest man-made excavation on earth, a hole nearly three miles wide and nearly four thousand feet deep.