Assertion: bronze's copper | /r/ObjectUse | used for year
Facets:
value: because of conduction capability
type: CAUSE
value: in different types of construction
type: OTHER
value: because of flexibility
type: CAUSE
value: because of its durability
type: CAUSE
Source sentences:
text: Copper has been used for years in different types of construction because of its durability, flexibility and conduction capability.