"oil trades below $73, gold reverses after bernanke" Answer this question: Does the news headline talk about price? Yes

"gold closes at 6-month high" Answer this question: Does the news headline compare gold with any other asset? No

"gold extends losses on weak global cues, sluggish demand " Answer this question: Does the news headline talk about a general event (apart from prices) in the future? No

"gold, silver prices climb; copper futures at all-time high" Answer this question: Does the news headline talk about price in the past? Yes

"gold slips, silver rises, and stocks trade mixed" Answer this question: Does the news headline talk about price in the past? Yes

"gold reverses course, closes higher; copper rallies" Answer this question: Does the news headline talk about price in the past?