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:2019-04-18, Stock:RIO, The news for the past five days is as follows:
2019-04-11: NEWS1: Ashland to Hike Price of Composites Products in North America.NEWS2: Ashland to Hike Price of Composites Products in North America.NEWS3: Allegheny (ATI) Extends Purchase Agreement With Rolls-Royce.NEWS4: Allegheny (ATI) Extends Purchase Agreement With Rolls-Royce.NEWS5: Allegheny (ATI) Extends Purchase Agreement With Rolls-Royce.NEWS6: Ashland to Hike Price of Composites Products in North America.NEWS7: Buenaventura Mining Company Inc. (BVN) Ex-Dividend Date Scheduled for April 12, 2019.NEWS8: Buenaventura Mining Company Inc. (BVN) Ex-Dividend Date Scheduled for April 12, 2019.NEWS9: Why Is Barclays Optimistic on the Iron Ore Price Outlook?.NEWS10: Credit Suisse Is Expecting a Push in Iron Ore Prices on Supply Deficit.
2019-04-12: NEWS1: Newmont's (NEM) Shareholders Clear Goldcorp Transaction.NEWS2: Newmont's (NEM) Shareholders Clear Goldcorp Transaction.NEWS3: Newmont's (NEM) Shareholders Clear Goldcorp Transaction.
2019-04-15: NEWS1: Rio Tinto cuts FY iron ore guidance after cyclone hits first-quarter shipments.NEWS2: European shares edge higher on trade optimism; U.S. bank earnings weigh.NEWS3: Newmont Mining Corporation (NEM) Ex-Dividend Date Scheduled for April 16, 2019.NEWS4: Newmont Mining Corporation (NEM) Ex-Dividend Date Scheduled for April 16, 2019.NEWS5: Rio Tinto cuts 2019 iron ore outlook on cyclone damage.NEWS6: Market report: Investors give Rio Tinto&apos;s Arizona cash plan the cold shoulder.NEWS7: European shares subdued after U.S.-China trade deal hopes.NEWS8: European shares subdued after U.S.-China trade deal hopes.NEWS9: What to expect from Rio Tinto and BHP's results.NEWS10: Rio Tinto to boost investment in sprawling US copper project.NEWS11: Mick Davis comeback orchestrated by Beny Steinmetz’s group.NEWS12: China Isn&apos;t Ready for Iron Deficit, Industry Veteran Warns.
2019-04-16: NEWS1: London markets higher on unemployment data.NEWS2: German optimism, China stimulus kicks Europe markets into gear.NEWS3: PRESS DIGEST- Financial Times - April 16.
2019-04-17: NEWS1: European Stocks Open Steady as Miners Slump, Automakers Advance.NEWS2: BHP cuts iron ore production outlook after Australian cyclone.

Answer: Rise