Assertion: mound's building | /r/ObjectUse | used for the processing of raw copper
Facets:
value: into finished products
type: TRANSITIVE-OBJECT
Source sentences:
text: A variety of raw copper nuggets, small pieces of worked copper, and stone tools for the working of copper were found in the structure, and it is now believed by researchers that the building was used for the processing of raw copper into finished products.