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:2018-10-29, Stock:RIO, The news for the past five days is as follows:
2018-10-22: NEWS1: Interesting RIO Put And Call Options For December 21st.NEWS2: Interesting RIO Put And Call Options For December 21st.NEWS3: Is Freeport Cheaper Now Compared to Its 2016 Lows?.NEWS4: Should Freeport Consider a Share Buyback?.NEWS5: Asian Shares Mixed Amid Geopolitical Concerns.NEWS6: Asian Shares Mixed Amid Geopolitical Concerns.
2018-10-23: NEWS1: Asian Markets Mostly Lower.NEWS2: Asian Markets Mostly Lower.NEWS3: Australian Market Edges Higher.NEWS4: Australian Market Edges Higher.NEWS5: Key Takeaways From Cleveland-Cliffs' Third Quarter Results.NEWS6: Key Takeaways From Cleveland-Cliffs' Third Quarter Results.NEWS7: Anglo American reports 1 percent rise in third-quarter output.
2018-10-24: NEWS1: Freeport-McMoRan Inc (FCX) Q3 2018 Earnings Conference Call Transcript.NEWS2: Bolsonaro&apos;s Love Affair With Mining Aims at the Amazon&apos;s Treasures.
2018-10-25: NEWS1: Copper weakness hints at economic woes ahead.NEWS2: [$$] Stocks to watch: WPP, Anglo American, Just, BT, AstraZeneca.
2018-10-26: NEWS1: Mesabi Trust (MSB) Ex-Dividend Date Scheduled for October 29, 2018.NEWS2: Mesabi Trust (MSB) Ex-Dividend Date Scheduled for October 29, 2018.NEWS3: Alumina Price Volatility Makes Companies Rethink Strategies.NEWS4: Glencore posts rise in copper, cobalt output on Katanga restart.NEWS5: Indonesia Asahan Aluminium (Persero) (P.T.) -- Moody's assigns first-time Baa2 issuer rating to Inalum.NEWS6: Indonesia Asahan Aluminium (Persero) (P.T.) -- Moody's assigns first-time Baa2 issuer rating to Inalum.NEWS7: Yanzhou&apos;s Coal Bet in Australia Wins Over Goldman.

Answer: Decrease