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:2018-12-10, Stock:RIO, The news for the past five days is as follows:
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.
2018-12-07: NEWS1: What Is Vale’s Iron Ore Price Outlook?.NEWS2: What Will Drive Vale’s Iron Ore EBITDA?.NEWS3: Vale Stock Could Benefit from Focus on Shareholder Returns.

Answer: Decrease