Assertion: arsenical bronze | /r/HasProperty | predominant alloy
Facets:
value: in south america
type: LOCATION
value: because of the rich arsenic
type: CAUSE
value: in north and central peru
type: LOCATION
value: in ecuador
type: LOCATION
Source sentences:
text: In South America, arsenical bronze was the predominant alloy in Ecuador and north and central Peru, because of the rich arsenic bearing ores present there.