Assertion: obsidian's use | /r/Desires | this material
Facets:
value: in spiritual lives
type: LOCATION
value: in daily
type: TEMPORAL
value: in ritual
type: TEMPORAL
value: heavily
type: DEGREE
Source sentences:
text: The use of Obsidian dates to the Old Stone Age, and many cultures relied heavily on this material in their daily, ritual, and spiritual lives.