Premise: Gold . In its purest form , it is a bright , slightly reddish yellow , dense , soft , malleable , and ductile metal . Chemically , gold is a transition metal and a group 11 element . Gold is insoluble in nitric acid , which dissolves silver and base metals , a property that has long been used to refine gold and to confirm the presence of gold in metallic objects , giving rise to the term acid test .
Hypothesis: Gold is known as a metal.
Label: ENTAILMENT