With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Gold is a metal that has value.
text_B: A precious metal is a rare , naturally occurring metallic chemical element of high economic value .. metal. metal. chemical element. chemical element. economic. economics. Chemically , the precious metals tend to be less reactive than most elements -LRB- see noble metal -RRB- .. metal. metal. reactive. reactivity ( chemistry ). noble metal. noble metal. They are usually ductile and have a high lustre .. ductile. ductile. lustre. Lustre ( mineralogy ). Historically , precious metals were important as currency but are now regarded mainly as investment and industrial commodities .. currency. currency. commodities. commodity. investment. investment. Gold , silver , platinum , and palladium each have an ISO 4217 currency code .. currency. currency. Gold. Gold. silver. silver. platinum. platinum. palladium. palladium. ISO 4217. ISO 4217. The best known precious metals are the coinage metals , gold and silver .. silver. silver. coinage metals. coinage metals. Although both have industrial uses , they are better known for their uses in art , jewelry , fine jewelry and coinage .. art. art. jewelry. jewellery. Other precious metals include the platinum group metals  : ruthenium , rhodium , palladium , osmium , iridium , and platinum , of which platinum is the most widely traded .. platinum. platinum. palladium. palladium. platinum group. platinum group. ruthenium. ruthenium. rhodium. rhodium. osmium. osmium. iridium. iridium. The demand for precious metals is driven not only by their practical use but also by their role as investments and a store of value .. store of value. store of value. Historically , precious metals have commanded much higher prices than common industrial metals .
related.