Assertion: obsidian | /r/ObjectUse | used by many other primitive peoples
Facets:
value: for ornaments
type: PURPOSE
value: for tools
type: PURPOSE
value: for weapons
type: PURPOSE
value: for implements
type: PURPOSE
Source sentences:
text: Obsidian was used by Native Americans and many other primitive peoples for weapons, implements, tools, and ornaments and by the ancient Aztec and ancient Greek civilizations for mirrors.