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:2018-07-31, Stock:PTR, The news for the past five days is as follows:
2018-07-24: NEWS1: China Stocks Draw Positive Lead For Wednesday.NEWS2: China Stocks Draw Positive Lead For Wednesday.
2018-07-25: NEWS1: Rebound Expected For China Stock Market.NEWS2: Rebound Expected For China Stock Market.
2018-07-26: NEWS1: China Stock Market May Extend Losing Streak.NEWS2: China Stock Market May Extend Losing Streak.NEWS3: VOC Energy Trust (VOC) Ex-Dividend Date Scheduled for July 27, 2018.NEWS4: VOC Energy Trust (VOC) Ex-Dividend Date Scheduled for July 27, 2018.NEWS5: Dorchester Minerals, L.P. (DMLP) Ex-Dividend Date Scheduled for July 27, 2018.NEWS6: Dorchester Minerals, L.P. (DMLP) Ex-Dividend Date Scheduled for July 27, 2018.NEWS7: Enerplus Corporation (ERF) Ex-Dividend Date Scheduled for July 27, 2018.NEWS8: Enerplus Corporation (ERF) Ex-Dividend Date Scheduled for July 27, 2018.
2018-07-27: NEWS1: TOTAL (TOT) Q2 Earnings Lag, Revenues Up on High Production.NEWS2: TOTAL (TOT) Q2 Earnings Lag, Revenues Up on High Production.NEWS3: Enduro Royalty Trust (NDRO) Ex-Dividend Date Scheduled for July 30, 2018.NEWS4: Enduro Royalty Trust (NDRO) Ex-Dividend Date Scheduled for July 30, 2018.NEWS5: Vermilion Energy Inc. (VET) Ex-Dividend Date Scheduled for July 30, 2018.NEWS6: Vermilion Energy Inc. (VET) Ex-Dividend Date Scheduled for July 30, 2018.NEWS7: San Juan Basin Royalty Trust (SJT) Ex-Dividend Date Scheduled for July 30, 2018.NEWS8: San Juan Basin Royalty Trust (SJT) Ex-Dividend Date Scheduled for July 30, 2018.NEWS9: Cross Timbers Royalty Trust (CRT) Ex-Dividend Date Scheduled for July 30, 2018.NEWS10: Cross Timbers Royalty Trust (CRT) Ex-Dividend Date Scheduled for July 30, 2018.NEWS11: PermRock Royalty Trust (PRT) Ex-Dividend Date Scheduled for July 30, 2018.NEWS12: PermRock Royalty Trust (PRT) Ex-Dividend Date Scheduled for July 30, 2018.NEWS13: Permian Basin Royalty Trust (PBT) Ex-Dividend Date Scheduled for July 30, 2018.NEWS14: Permian Basin Royalty Trust (PBT) Ex-Dividend Date Scheduled for July 30, 2018.NEWS15: Mesa Royalty Trust (MTR) Ex-Dividend Date Scheduled for July 30, 2018.NEWS16: Mesa Royalty Trust (MTR) Ex-Dividend Date Scheduled for July 30, 2018.
2018-07-30: NEWS1: Losing Streak Expected To Continue For China Shares.NEWS2: Losing Streak Expected To Continue For China Shares.NEWS3: PetroChina Forecasts 1H Net Profit To More Than Double; Highest Since 2015.

Answer: Decrease