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:2018-02-01, Stock:PTR, The news for the past five days is as follows:
2018-01-25: NEWS1: Soft Start Seen For China Stock Market.NEWS2: Soft Start Seen For China Stock Market.NEWS3: ONEOK, Inc. (OKE) Ex-Dividend Date Scheduled for January 26, 2018.NEWS4: ONEOK, Inc. (OKE) Ex-Dividend Date Scheduled for January 26, 2018.NEWS5: Dorchester Minerals, L.P. (DMLP) Ex-Dividend Date Scheduled for January 26, 2018.NEWS6: Dorchester Minerals, L.P. (DMLP) Ex-Dividend Date Scheduled for January 26, 2018.NEWS7: Forecasting ExxonMobil’s Stock Price.
2018-01-26: NEWS1: ETFs and Stocks to Buy on Falling Dollar.NEWS2: VOC Energy Trust (VOC) Ex-Dividend Date Scheduled for January 29, 2018.NEWS3: VOC Energy Trust (VOC) Ex-Dividend Date Scheduled for January 29, 2018.NEWS4: Chevron’s Moving Averages Trend Upward.NEWS5: How ExxonMobil’s Short Interest Compares.
2018-01-29: NEWS1: China Stock Market May Test Support At 3,500 Points.NEWS2: China Stock Market May Test Support At 3,500 Points.NEWS3: Enduro Royalty Trust (NDRO) Ex-Dividend Date Scheduled for January 30, 2018.NEWS4: Enduro Royalty Trust (NDRO) Ex-Dividend Date Scheduled for January 30, 2018.NEWS5: Vermilion Energy Inc. (VET) Ex-Dividend Date Scheduled for January 30, 2018.NEWS6: Vermilion Energy Inc. (VET) Ex-Dividend Date Scheduled for January 30, 2018.NEWS7: San Juan Basin Royalty Trust (SJT) Ex-Dividend Date Scheduled for January 30, 2018.NEWS8: San Juan Basin Royalty Trust (SJT) Ex-Dividend Date Scheduled for January 30, 2018.NEWS9: Cross Timbers Royalty Trust (CRT) Ex-Dividend Date Scheduled for January 30, 2018.NEWS10: Cross Timbers Royalty Trust (CRT) Ex-Dividend Date Scheduled for January 30, 2018.NEWS11: Permian Basin Royalty Trust (PBT) Ex-Dividend Date Scheduled for January 30, 2018.NEWS12: Permian Basin Royalty Trust (PBT) Ex-Dividend Date Scheduled for January 30, 2018.NEWS13: Mesa Royalty Trust (MTR) Ex-Dividend Date Scheduled for January 30, 2018.NEWS14: Mesa Royalty Trust (MTR) Ex-Dividend Date Scheduled for January 30, 2018.NEWS15: Enerplus Corporation (ERF) Ex-Dividend Date Scheduled for January 30, 2018.NEWS16: Enerplus Corporation (ERF) Ex-Dividend Date Scheduled for January 30, 2018.
2018-01-30: NEWS1: Losing Streak Likely To Continue For China Shares.NEWS2: Losing Streak Likely To Continue For China Shares.NEWS3: PetroChina's Tripling Profit on Higher Oil Misses Expectations.
2018-01-31: NEWS1: Losing Streak May End For China Stock Market.NEWS2: Losing Streak May End For China Stock Market.NEWS3: Hess Midstream Partners LP (HESM) Ex-Dividend Date Scheduled for February 01, 2018.NEWS4: Hess Midstream Partners LP (HESM) Ex-Dividend Date Scheduled for February 01, 2018.NEWS5: China National Petroleum Corporation -- Moody's: PetroChina's positive earnings alert supports CNPC's A1 rating.

Answer: Decrease