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:2018-08-13, Stock:PTR, The news for the past five days is as follows:
2018-08-06: NEWS1: China Stock Market Draws Positive Lead.NEWS2: China Stock Market Draws Positive Lead.
2018-08-07: NEWS1: China Market May Reclaim 2,800-Point Mark.NEWS2: China Market May Reclaim 2,800-Point Mark.NEWS3: 5 Top Stocks With Striking Net Profit Margin.NEWS4: Value Stocks Outperforming Growth: 5 Top Picks.NEWS5: Value Stocks Outperforming Growth: 5 Top Picks.NEWS6: Cabot Oil & Gas Corporation (COG) Ex-Dividend Date Scheduled for August 08, 2018.NEWS7: Cabot Oil & Gas Corporation (COG) Ex-Dividend Date Scheduled for August 08, 2018.NEWS8: Pacific Coast Oil Trust (ROYT) Ex-Dividend Date Scheduled for August 08, 2018.NEWS9: Pacific Coast Oil Trust (ROYT) Ex-Dividend Date Scheduled for August 08, 2018.
2018-08-08: NEWS1: China Shares May Extend Wednesday's Losses.NEWS2: China Shares May Extend Wednesday's Losses.NEWS3: SandRidge Permian Trust (PER) Ex-Dividend Date Scheduled for August 09, 2018.NEWS4: SandRidge Permian Trust (PER) Ex-Dividend Date Scheduled for August 09, 2018.NEWS5: EQT Corporation (EQT) Ex-Dividend Date Scheduled for August 09, 2018.NEWS6: EQT Corporation (EQT) Ex-Dividend Date Scheduled for August 09, 2018.NEWS7: SandRidge Mississippian Trust II (SDR) Ex-Dividend Date Scheduled for August 09, 2018.NEWS8: SandRidge Mississippian Trust II (SDR) Ex-Dividend Date Scheduled for August 09, 2018.NEWS9: SandRidge Mississippian Trust I (SDT) Ex-Dividend Date Scheduled for August 09, 2018.NEWS10: SandRidge Mississippian Trust I (SDT) Ex-Dividend Date Scheduled for August 09, 2018.NEWS11: Zacks.com highlights: Turtle Beach, PetroChina, Harsco, Integer Holdings and Triton International.NEWS12: Asian Markets End On Mixed Note.NEWS13: Asian Markets End On Mixed Note.
2018-08-09: NEWS1: China Bourse May See Mild Downside Correction.NEWS2: China Bourse May See Mild Downside Correction.NEWS3: Cheniere CEO sees no impact from Chinese tariffs on U.S. LNG.NEWS4: Viper Energy Partners LP (VNOM) Ex-Dividend Date Scheduled for August 10, 2018.NEWS5: Viper Energy Partners LP (VNOM) Ex-Dividend Date Scheduled for August 10, 2018.
2018-08-10: nan

Answer: Decrease