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:2018-08-30, Stock:RIO, The news for the past five days is as follows:
2018-08-23: NEWS1: McEwen Mining Inc. (MUX) Ex-Dividend Date Scheduled for August 24, 2018.NEWS2: McEwen Mining Inc. (MUX) Ex-Dividend Date Scheduled for August 24, 2018.
2018-08-24: nan
2018-08-27: nan
2018-08-28: NEWS1: Asian Markets Mostly Higher Amid Focus On Trade Talks.NEWS2: Asian Markets Mostly Higher Amid Focus On Trade Talks.NEWS3: Australian Market Edges Higher.NEWS4: Australian Market Edges Higher.NEWS5: Alcoa Could Benefit If Canada Is Exempt from the Tariffs.NEWS6: [$$] Coal industry between a rock and a hard place.
2018-08-29: NEWS1: Asian Markets Mostly Higher With Modest Gains.NEWS2: Asian Markets Mostly Higher With Modest Gains.NEWS3: Australian Market Extends Gains.NEWS4: Australian Market Extends Gains.NEWS5: Moving Average Crossover Alert: Rio Tinto (RIO).NEWS6: Moving Average Crossover Alert: Rio Tinto (RIO).NEWS7: Barrick Gold Corporation (ABX) Ex-Dividend Date Scheduled for August 30, 2018.NEWS8: Barrick Gold Corporation (ABX) Ex-Dividend Date Scheduled for August 30, 2018.NEWS9: Agnico Eagle Mines Limited (AEM) Ex-Dividend Date Scheduled for August 30, 2018.NEWS10: Agnico Eagle Mines Limited (AEM) Ex-Dividend Date Scheduled for August 30, 2018.NEWS11: Moving Average Crossover Alert: Rio Tinto (RIO).

Answer: Decrease