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:2018-10-23, Stock:PTR, The news for the past five days is as follows:
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.
2018-10-18: NEWS1: More Pain Predicted For China Stock Market.NEWS2: More Pain Predicted For China Stock Market.NEWS3: Apache Corporation (APA) Ex-Dividend Date Scheduled for October 19, 2018.NEWS4: Apache Corporation (APA) Ex-Dividend Date Scheduled for October 19, 2018.
2018-10-19: NEWS1: Total’s Stock Price Forecast before Its Q3 Earnings.
2018-10-22: NEWS1: China Stock Market Due For Consolidation.NEWS2: China Stock Market Due For Consolidation.NEWS3: Total: Has the Short Interest Risen?.

Answer: Decrease