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:2018-07-19, Stock:PTR, The news for the past five days is as follows:
2018-07-12: NEWS1: China Stock Market May Add To Its Winnings.NEWS2: China Stock Market May Add To Its Winnings.NEWS3: Sabine Royalty Trust (SBR) Ex-Dividend Date Scheduled for July 13, 2018.NEWS4: Sabine Royalty Trust (SBR) Ex-Dividend Date Scheduled for July 13, 2018.NEWS5: RGC Resources Inc. (RGCO) Ex-Dividend Date Scheduled for July 13, 2018.NEWS6: RGC Resources Inc. (RGCO) Ex-Dividend Date Scheduled for July 13, 2018.NEWS7: MV Oil Trust (MVO) Ex-Dividend Date Scheduled for July 13, 2018.NEWS8: MV Oil Trust (MVO) Ex-Dividend Date Scheduled for July 13, 2018.
2018-07-13: NEWS1: EOG Resources, Inc. (EOG) Ex-Dividend Date Scheduled for July 16, 2018.NEWS2: EOG Resources, Inc. (EOG) Ex-Dividend Date Scheduled for July 16, 2018.
2018-07-16: NEWS1: Losing Streak May Continue For China Stock Market.NEWS2: Losing Streak May Continue For China Stock Market.
2018-07-17: NEWS1: China Stock Market May Halt Its Slide On Wednesday.NEWS2: China Stock Market May Halt Its Slide On Wednesday.NEWS3: Asian stocks mostly lower as weak energy shares weigh.
2018-07-18: NEWS1: China Stock Market May Snap Losing Streak.NEWS2: China Stock Market May Snap Losing Streak.

Answer: Decrease