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:2018-09-17, Stock:RIO, The news for the past five days is as follows:
2018-09-10: NEWS1: Asian Markets Mixed Amid Possible Second Trump-Kim Summit.NEWS2: Asian Markets Mixed Amid Possible Second Trump-Kim Summit.NEWS3: Australian Market Modestly Higher.NEWS4: Australian Market Modestly Higher.NEWS5: Rio Tinto Stock Upgraded: What You Need to Know.NEWS6: Rio Tinto Stock Upgraded: What You Need to Know.NEWS7: Rio Tinto Stock Upgraded: What You Need to Know.NEWS8: Are Miners Looking Cheap? J.P. Morgan Thinks So, Upgrades Rio Tinto.
2018-09-11: NEWS1: Asian Markets Broadly Lower On Trade Worries.NEWS2: Asian Markets Broadly Lower On Trade Worries.NEWS3: Australian Market Declines.NEWS4: Australian Market Declines.NEWS5: Rio Tinto Enters Oversold Territory.NEWS6: Rio Tinto Enters Oversold Territory.NEWS7: Newmont Mining Corporation (NEM) Ex-Dividend Date Scheduled for September 12, 2018.NEWS8: Newmont Mining Corporation (NEM) Ex-Dividend Date Scheduled for September 12, 2018.NEWS9: Goldcorp Inc. (GG) Ex-Dividend Date Scheduled for September 12, 2018.NEWS10: Goldcorp Inc. (GG) Ex-Dividend Date Scheduled for September 12, 2018.NEWS11: Franco-Nevada Corporation (FNV) Ex-Dividend Date Scheduled for September 12, 2018.NEWS12: Franco-Nevada Corporation (FNV) Ex-Dividend Date Scheduled for September 12, 2018.NEWS13: RJP-Power vacuum: Rio Tinto scours for electricity to run giant Mongolia copper mine.
2018-09-12: NEWS1: Asian Markets Rise On U.S.-China Trade Talk Optimism.NEWS2: Asian Markets Rise On U.S.-China Trade Talk Optimism.NEWS3: Australian Market Slips Ahead Of Unemployment Data.NEWS4: Australian Market Slips Ahead Of Unemployment Data.NEWS5: Asian Shares End On Muted Note Amid Trade Worries.NEWS6: Asian Shares End On Muted Note Amid Trade Worries.
2018-09-13: NEWS1: Copper Miners: Tough to Love, Even Tougher to Hate.NEWS2: Why It’s Tough to Hate Alcoa at These Prices.NEWS3: What’s Holding Back Alcoa Stock This Year?.
2018-09-14: NEWS1: [$$] Norway's Norsk Hydro Pulls $345M Acquisition of Rio Tinto Assets.

Answer: Rise