Occurrence of Attributes in Original Text

The text related to the cultural heritage 'Cahokia Mounds State Historic Site' has mentioned 'Stone' in the following places:
Occurrence Sentence Text Source
[12] The inhabitants left no written records beyond symbols on pottery, shell, copper, wood, and stone, but the elaborately planned community, woodhenge, mounds, and burials reveal a complex and sophisticated society.
[20] Mississippian culture pottery and stone tools in the Cahokian style were found at the Silvernale site[21] near Red Wing, Minnesota, and materials and trade goods from Pennsylvania, the Gulf Coast and Lake Superior have been excavated at Cahokia.
The game was played by rolling a disc-shaped chunky stone across the field.
The men would throw spears where they thought the chunky stone would land.