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:2018-11-13, Stock:PTR, The news for the past five days is as follows:
2018-11-06: NEWS1: MARKETS:  Oil hits a 7 month low flirting with bear market.NEWS2: China Bourse Tipped To Halt Two-Day Slide.NEWS3: China Bourse Tipped To Halt Two-Day Slide.NEWS4: China To Boost Shale Oil, Gas Production.NEWS5: Falcon Minerals Corporation (FLMN) Ex-Dividend Date Scheduled for November 07, 2018.NEWS6: Falcon Minerals Corporation (FLMN) Ex-Dividend Date Scheduled for November 07, 2018.NEWS7: Forecasting Chevron’s Stock Price Range.
2018-11-07: NEWS1: China Stock Market Tipped To Halt Losing Streak.NEWS2: China Stock Market Tipped To Halt Losing Streak.NEWS3: SandRidge Mississippian Trust I (SDT) Ex-Dividend Date Scheduled for November 08, 2018.NEWS4: SandRidge Mississippian Trust I (SDT) Ex-Dividend Date Scheduled for November 08, 2018.NEWS5: Oasis Midstream Partners LP (OMP) Ex-Dividend Date Scheduled for November 08, 2018.NEWS6: Oasis Midstream Partners LP (OMP) Ex-Dividend Date Scheduled for November 08, 2018.NEWS7: SandRidge Permian Trust (PER) Ex-Dividend Date Scheduled for November 08, 2018.NEWS8: SandRidge Permian Trust (PER) Ex-Dividend Date Scheduled for November 08, 2018.NEWS9: SandRidge Mississippian Trust II (SDR) Ex-Dividend Date Scheduled for November 08, 2018.NEWS10: SandRidge Mississippian Trust II (SDR) Ex-Dividend Date Scheduled for November 08, 2018.NEWS11: Viper Energy Partners LP (VNOM) Ex-Dividend Date Scheduled for November 08, 2018.NEWS12: Viper Energy Partners LP (VNOM) Ex-Dividend Date Scheduled for November 08, 2018.NEWS13: Helmerich & Payne, Inc. (HP) Ex-Dividend Date Scheduled for November 08, 2018.NEWS14: Helmerich & Payne, Inc. (HP) Ex-Dividend Date Scheduled for November 08, 2018.NEWS15: PetroChina Company Limited (HKG:857): Financial Strength Analysis.
2018-11-08: NEWS1: China Stock Market May Extend Losing Streak.NEWS2: China Stock Market May Extend Losing Streak.NEWS3: PetroChina’s Shares Rise After Securing Supply Agreements.
2018-11-09: nan
2018-11-12: NEWS1: China Bourse May Head South Again On Tuesday.NEWS2: China Bourse May Head South Again On Tuesday.NEWS3: Black Stone Minerals, L.P. (BSM) Ex-Dividend Date Scheduled for November 13, 2018.NEWS4: Black Stone Minerals, L.P. (BSM) Ex-Dividend Date Scheduled for November 13, 2018.

Answer: Decrease