Assertion: obsidian | /r/AtLocation | location
Facets:
value: worldwide
type: LOCATION
Source sentences:
text: Obsidian is found in locations which have undergone rhyolitic eruptions.
text: Obsidian is found in many locations worldwide.
text: Obsidian can be found in locations which have experienced rhyolitic eruptions.
text: Obsidian can be found in locations which have experienced rhyolitic eruptions.