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:2018-11-20, Stock:RIO, The news for the past five days is as follows:
2018-11-13: NEWS1: Asian Markets Mostly Lower.NEWS2: Asian Markets Mostly Lower.NEWS3: Australian Market Extends Losses.NEWS4: Australian Market Extends Losses.NEWS5: Why Iron Ore Stocks Could Struggle to Hold Ground.
2018-11-14: NEWS1: Miners&apos; Spending on Hunt for Copper, EV Metals Hits $10 Billion.NEWS2: Asian Markets Mostly Higher With Modest Gains.NEWS3: Asian Markets Mostly Higher With Modest Gains.NEWS4: Australian Market Flat As Banks Decline.NEWS5: Australian Market Flat As Banks Decline.NEWS6: Buenaventura Mining Company Inc. (BVN) Ex-Dividend Date Scheduled for November 15, 2018.NEWS7: Buenaventura Mining Company Inc. (BVN) Ex-Dividend Date Scheduled for November 15, 2018.NEWS8: Is Rio Tinto (RIO) A Hidden Gem or a Chunk of Coal?.
2018-11-15: NEWS1: What Really Changed for Alcoa after Trump’s Tariffs?.NEWS2: Pan American Silver Corp. (PAAS) Ex-Dividend Date Scheduled for November 16, 2018.NEWS3: Pan American Silver Corp. (PAAS) Ex-Dividend Date Scheduled for November 16, 2018.
2018-11-16: nan
2018-11-19: NEWS1: JD.com falls short, new GE problems, Rio Tinto focuses on coffee.NEWS2: Is There More Heat Left in Freeport-McMoRan’s Rally?.NEWS3: PRESS DIGEST- Financial Times - Nov 19.

Answer: Decrease