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Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	An inexpensive choice would be 12K, which would be hardened enough but the gold content would not be as high as 18K, which is made of 75% gold and other metals.
http://www.w3.org/ns/prov#wasQuotedFrom	starlight-news.co.uk