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:2018-10-18, Stock:PTR, The news for the past five days is as follows:
2018-10-11: NEWS1: China Stock Market Has Negative Lead For Friday.NEWS2: China Stock Market Has Negative Lead For Friday.NEWS3: Sabine Royalty Trust (SBR) Ex-Dividend Date Scheduled for October 12, 2018.NEWS4: Sabine Royalty Trust (SBR) Ex-Dividend Date Scheduled for October 12, 2018.NEWS5: MV Oil Trust (MVO) Ex-Dividend Date Scheduled for October 12, 2018.NEWS6: MV Oil Trust (MVO) Ex-Dividend Date Scheduled for October 12, 2018.
2018-10-12: nan
2018-10-15: NEWS1: Continued Consolidation Called For China Stock Market.NEWS2: Continued Consolidation Called For China Stock Market.NEWS3: EOG Resources, Inc. (EOG) Ex-Dividend Date Scheduled for October 16, 2018.NEWS4: EOG Resources, Inc. (EOG) Ex-Dividend Date Scheduled for October 16, 2018.
2018-10-16: NEWS1: China Bourse May Halt Losing Streak.NEWS2: China Bourse May Halt Losing Streak.NEWS3: Analyzing Shell’s Stock Price Forecast Range.NEWS4: How Has Shell Stock Trended before Its Earnings?.NEWS5: What’s the Forecast for Suncor Stock until Its Q3 2018 Results?.
2018-10-17: NEWS1: China Shares May See Renewed Consolidation.NEWS2: China Shares May See Renewed Consolidation.NEWS3: Shell: Why Analysts Have a Favorable Opinion.

Answer: Decrease