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:2019-02-20, Stock:RIO, The news for the past five days is as follows:
2019-02-12: NEWS1: Cleveland-Cliffs (CLF) Lags Earnings, Sales Estimates in Q4.NEWS2: Cleveland-Cliffs (CLF) Lags Earnings, Sales Estimates in Q4.NEWS3: Rio Tinto (RIO) Stock Upgraded to Buy.NEWS4: Rio Tinto (RIO) Stock Upgraded to Buy.NEWS5: Cleveland-Cliffs (CLF) Lags Earnings, Sales Estimates in Q4.NEWS6: Take-Two, Las Vegas Sands, Unilever, Rio Tinto and Celgene highlighted as Zacks Bull and Bear of the Day.NEWS7: Take-Two, Las Vegas Sands, Unilever, Rio Tinto and Celgene highlighted as Zacks Bull and Bear of the Day.NEWS8: Don’t Count Mining Stocks Out in a Slowdown, Goldman Sachs Says.NEWS9: Southern Copper (SCCO) Earnings & Sales Miss Estimates in Q4.NEWS10: Southern Copper (SCCO) Earnings & Sales Miss Estimates in Q4.NEWS11: Take-Two, Las Vegas Sands, Unilever, Rio Tinto and Celgene highlighted as Zacks Bull and Bear of the Day.NEWS12: How Vale’s Dam Burst Could Benefit Cleveland Cliffs.NEWS13: Southern Copper (SCCO) Earnings & Sales Miss Estimates in Q4.NEWS14: COLUMN-Vale iron ore dam disaster may force China steel mills to change: Russell.NEWS15: Copper Is Stuck Between a Rock and a Hard Place.NEWS16: COLUMN-Vale iron ore dam disaster may force China steel mills to change: Russell.NEWS17: [$$] Stocks to watch: Plus500, Michelin, Omnicom, Coty, Spire, Britvic.
2019-02-13: NEWS1: Why Freeport-McMoRan Is Surging Today.NEWS2: Huntsman (HUN) Q4 Earnings Miss, Revenues Beat Estimates.NEWS3: Huntsman (HUN) Q4 Earnings Miss, Revenues Beat Estimates.NEWS4: Huntsman (HUN) Q4 Earnings Miss, Revenues Beat Estimates.
2019-02-14: nan
2019-02-15: NEWS1: Top Ranked Income Stocks to Buy for February 15th.NEWS2: Top Ranked Income Stocks to Buy for February 15th.NEWS3: Top Ranked Income Stocks to Buy for February 15th.
2019-02-19: NEWS1: BHP Can&apos;t Rescue Iron-Ore Market After Brazil Dam Disaster.

Answer: Rise