Occurrence of Attributes in Original Text

The text related to the cultural heritage 'Ha Long Bay' has mentioned 'Stone' in the following places:
Occurrence Sentence Text Source
This process of erosion by seawater has deeply engraved the stone, contributing to its fantastic beauty.
beginning of the late Holocene Epoch The level of the water once again increased, forming a marshy floor of canals and streams, and creating the water marks that can be seen on the stone cliffs of today.
Nguyxc3xaan Ngxe1xbbx8dc: "...to form this first- rate wonder, nature only uses: Stone and Water...There are just only two materials themselves chosen from as much as materials, in order to write, to draw, to sculpture, to create everything...It is quite possible that here is the image of the future world".