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:2018-12-07, Stock:RIO, The news for the past five days is as follows:
2018-11-29: NEWS1: Asian Markets Mixed Ahead Of G-20 Summit.NEWS2: Asian Markets Mixed Ahead Of G-20 Summit.NEWS3: Australian Market Declines.NEWS4: Australian Market Declines.NEWS5: Rio Tinto Approves $2.6 Billion in Investments for Western Australia.NEWS6: Copper Miners Expect Higher Production, Labor Threat Eases.NEWS7: Copper Miners’ Production Profiles in 2018.NEWS8: How Are Copper Miners Placed in Q4 2018?.NEWS9: [$$] Rio Tinto plans $2.6bn spend on Koodaideri iron ore mine.NEWS10: 'Blade Runner' in the dust: Rio backs $2.6 billion iron ore mine in West Australia.NEWS11: [$$] Rio Tinto to Build New $2.6 Billion Iron-ore Mine.NEWS12: FTSE 100 Rises After Wall Street Rally.NEWS13: FTSE 100 Rises After Wall Street Rally.NEWS14: Asian Shares Mostly Higher After Powell Remarks.NEWS15: Asian Shares Mostly Higher After Powell Remarks.
2018-11-30: nan
2018-12-03: NEWS1: Asian Markets Lower Amid Doubts Over U.S.-China Trade Truce.NEWS2: Asian Markets Lower Amid Doubts Over U.S.-China Trade Truce.NEWS3: Australian Market Declines Ahead Of RBA Decision.NEWS4: Australian Market Declines Ahead Of RBA Decision.NEWS5: Is There a Buying Opportunity in Alcoa?.NEWS6: MarketPulse Europe: Miners Rally on U.S.-China Trade Breakthrough.NEWS7: Europe stocks track global rally, resource stocks soar.
2018-12-04: NEWS1: Asian Markets In Negative Territory After Wall Street Plunge.NEWS2: Asian Markets In Negative Territory After Wall Street Plunge.NEWS3: Australian Market Notably Lower.NEWS4: Australian Market Notably Lower.
2018-12-06: NEWS1: BHP Billiton Downgraded by JPMorgan, Added to Goldman’s Buy List.NEWS2: Asian Shares Tumble As Trade Tensions Escalate.NEWS3: Asian Shares Tumble As Trade Tensions Escalate.

Answer: Decrease