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:2019-04-15, Stock:PTR, The news for the past five days is as follows:
2019-04-08: NEWS1: Shell enters China's shale oil scene with joint study with Sinopec.
2019-04-09: nan
2019-04-10: NEWS1: Shell's LNG Canada Project to Sell Output to JERA of Japan.NEWS2: Shell's LNG Canada Project to Sell Output to JERA of Japan.NEWS3: Shell's LNG Canada Project to Sell Output to JERA of Japan.
2019-04-11: NEWS1: Sabine Royalty Trust (SBR) Ex-Dividend Date Scheduled for April 12, 2019.NEWS2: Sabine Royalty Trust (SBR) Ex-Dividend Date Scheduled for April 12, 2019.NEWS3: MV Oil Trust (MVO) Ex-Dividend Date Scheduled for April 12, 2019.NEWS4: MV Oil Trust (MVO) Ex-Dividend Date Scheduled for April 12, 2019.NEWS5: BP latest oil major to exit China's shale gas after poor drilling results.
2019-04-12: NEWS1: Exxon and Others Say U.S. Government Sold Toxic Crude Oil.NEWS2: Are Analysts Positive on Chevron ahead of Its Earnings Results?.NEWS3: EOG Resources, Inc. (EOG) Ex-Dividend Date Scheduled for April 15, 2019.NEWS4: EOG Resources, Inc. (EOG) Ex-Dividend Date Scheduled for April 15, 2019.NEWS5: Why Has Chevron Stock Surged ahead of Its Earnings?.

Answer: Decrease