Based on the news about the stock in the past five trading days, please predict the rise or fall of the stock in the next trading day. If the stock is predicted to rise in the next trading day, please output [Rise], if the stock is predicted to fall in the next trading day, please output [Decrease].

Date:2019-01-04, Stock:RIO, The news for the past five days is as follows:
2018-12-27: NEWS1: Kirkland Lake Gold Ltd. (KL) Ex-Dividend Date Scheduled for December 28, 2018.NEWS2: Kirkland Lake Gold Ltd. (KL) Ex-Dividend Date Scheduled for December 28, 2018.NEWS3: Osisko Gold Royalties Ltd (OR) Ex-Dividend Date Scheduled for December 28, 2018.NEWS4: Osisko Gold Royalties Ltd (OR) Ex-Dividend Date Scheduled for December 28, 2018.
2018-12-28: NEWS1: RIO February 2019 Options Begin Trading.NEWS2: RIO February 2019 Options Begin Trading.NEWS3: Why Are Analysts Turning Around on Vale?.NEWS4: Factors Driving Rio Tinto’s Earnings Estimates in 2019 and Beyond.NEWS5: Analysts’ Latest Upgrades and Downgrades for Rio Tinto.NEWS6: Should Alcoa Be on Your Shopping List for 2019?.
2018-12-31: NEWS1: Rio Tinto, Mongolia sign power deal for Oyu Tolgoi copper mine.NEWS2: Why Analysts Expect Higher Earnings for Vale Going Forward.NEWS3: UK markets rise as the curtain falls on a dim 2018.NEWS4: Asian Shares Mixed On Weak China Data.NEWS5: Asian Shares Mixed On Weak China Data.
2019-01-02: NEWS1: Cleveland-Cliffs Inc. (CLF) Ex-Dividend Date Scheduled for January 03, 2019.NEWS2: Cleveland-Cliffs Inc. (CLF) Ex-Dividend Date Scheduled for January 03, 2019.NEWS3: Royal Gold, Inc. (RGLD) Ex-Dividend Date Scheduled for January 03, 2019.NEWS4: Royal Gold, Inc. (RGLD) Ex-Dividend Date Scheduled for January 03, 2019.NEWS5: Asian Shares Tumble As China Data Disappoints.NEWS6: Asian Shares Tumble As China Data Disappoints.NEWS7: Rio Plans to Delay Ex-CEO&apos;s Bonus Again Amid Guinea Probe.
2019-01-03: nan

Answer: Rise