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:2019-03-22, Stock:RIO, The news for the past five days is as follows:
2019-03-15: NEWS1: The Zacks Analyst Blog Highlights: Rio Tinto, Smith & Nephew, Endava, AstraZeneca and British American Tobacco.NEWS2: The Zacks Analyst Blog Highlights: Rio Tinto, Smith & Nephew, Endava, AstraZeneca and British American Tobacco.NEWS3: Has Rio Tinto (RIO) Outpaced Other Basic Materials Stocks This Year?.NEWS4: Has Rio Tinto (RIO) Outpaced Other Basic Materials Stocks This Year?.NEWS5: The Zacks Analyst Blog Highlights: Rio Tinto, Smith & Nephew, Endava, AstraZeneca and British American Tobacco.NEWS6: Has Rio Tinto (RIO) Outpaced Other Basic Materials Stocks This Year?.
2019-03-18: NEWS1: Rio Tinto Must Face SEC Suit Over Coal Assets.NEWS2: U.S. judge says Rio Tinto must face SEC fraud case.NEWS3: U.S. judge says Rio Tinto must face SEC fraud case.NEWS4: U.S. judge says SEC may pursue Rio Tinto fraud case.NEWS5: Miners, banks thrust FTSE 100 to sixth day of gains.NEWS6: Rio asks shareholders to vote against emissions resolution.
2019-03-19: nan
2019-03-20: NEWS1: AngloGold Ashanti Limited (AU) Ex-Dividend Date Scheduled for March 21, 2019.NEWS2: AngloGold Ashanti Limited (AU) Ex-Dividend Date Scheduled for March 21, 2019.NEWS3: Cyclone Lurks Off West Australia as Storm Hits Major Mine.
2019-03-21: NEWS1: Analyst Favorites: Peabody Energy Corp Ranks As a Top Metals Pick.NEWS2: Analyst Favorites: Peabody Energy Corp Ranks As a Top Metals Pick.

Answer: Decrease