Assertion: granite | /r/ObjectUse | used as a building material
Facets:
value: for centuries
type: TEMPORAL
value: throughout human civilization
type: TEMPORAL
Source sentences:
text: Granite has been used as a building material for centuries.
text: Granite has been used as a building material for centuries.
text: This is why throughout human civilization, granite has been used as a building material.
text: Granite is used as a building material because it's a hard stone.