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:2018-12-04, Stock:PTR, The news for the past five days is as follows:
2018-11-27: NEWS1: China Stock Market Draws Flat Lead For Wednesday.NEWS2: China Stock Market Draws Flat Lead For Wednesday.NEWS3: Enerplus Corporation (ERF) Ex-Dividend Date Scheduled for November 28, 2018.NEWS4: Enerplus Corporation (ERF) Ex-Dividend Date Scheduled for November 28, 2018.
2018-11-28: NEWS1: Additional Support Tipped For China Shares.NEWS2: Additional Support Tipped For China Shares.NEWS3: ExxonMobil’s Stock Price Forecast until December 31.NEWS4: Cross Timbers Royalty Trust (CRT) Ex-Dividend Date Scheduled for November 29, 2018.NEWS5: Cross Timbers Royalty Trust (CRT) Ex-Dividend Date Scheduled for November 29, 2018.NEWS6: San Juan Basin Royalty Trust (SJT) Ex-Dividend Date Scheduled for November 29, 2018.NEWS7: San Juan Basin Royalty Trust (SJT) Ex-Dividend Date Scheduled for November 29, 2018.NEWS8: Vermilion Energy Inc. (VET) Ex-Dividend Date Scheduled for November 29, 2018.NEWS9: Vermilion Energy Inc. (VET) Ex-Dividend Date Scheduled for November 29, 2018.NEWS10: Permian Basin Royalty Trust (PBT) Ex-Dividend Date Scheduled for November 29, 2018.NEWS11: Permian Basin Royalty Trust (PBT) Ex-Dividend Date Scheduled for November 29, 2018.NEWS12: PermRock Royalty Trust (PRT) Ex-Dividend Date Scheduled for November 29, 2018.NEWS13: PermRock Royalty Trust (PRT) Ex-Dividend Date Scheduled for November 29, 2018.NEWS14: Mesa Royalty Trust (MTR) Ex-Dividend Date Scheduled for November 29, 2018.NEWS15: Mesa Royalty Trust (MTR) Ex-Dividend Date Scheduled for November 29, 2018.NEWS16: Marine Petroleum Trust (MARPS) Ex-Dividend Date Scheduled for November 29, 2018.NEWS17: Marine Petroleum Trust (MARPS) Ex-Dividend Date Scheduled for November 29, 2018.NEWS18: Permianville Royalty Trust (PVL) Ex-Dividend Date Scheduled for November 29, 2018.NEWS19: Permianville Royalty Trust (PVL) Ex-Dividend Date Scheduled for November 29, 2018.NEWS20: Contender: Saudi Arabia nabs new China oil demand, challenges Russia's top spot.
2018-11-29: NEWS1: China Bourse May Extend Thursday's Losses.NEWS2: China Bourse May Extend Thursday's Losses.NEWS3: Why Has the Short Interest in ExxonMobil Stock Risen?.NEWS4: ENSCO plc (ESV) Ex-Dividend Date Scheduled for November 30, 2018.NEWS5: ENSCO plc (ESV) Ex-Dividend Date Scheduled for November 30, 2018.
2018-11-30: nan
2018-12-03: NEWS1: China Stock Market May Extend Winning Streak.NEWS2: China Stock Market May Extend Winning Streak.

Answer: Decrease