"gold futures close higher for an eighth session" Does the news headline compare gold with any other asset? No

"gold futures up 0.2% on day, down 7.1% on week" Does the news headline talk about price going up? Yes

"february gold rallies to intraday high of $900.50 an ounce" Does the news headline talk about a general event (apart from prices) in the future? No

"spot gold quoted at $399, down $1.30 from new york" Does the news headline talk about price in the past? Yes

"gold: won't name potential eisner successors - cnbc" Does the news headline talk about price in the future? No

"canadian shares bounce back with oil, gold gains" Does the news headline talk about price staying constant?