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:2019-04-26, Stock:PTR, The news for the past five days is as follows:
2019-04-18: NEWS1: Short Interest in BP Surges ahead of Its Q1 Results.
2019-04-22: nan
2019-04-23: NEWS1: Pembina Pipeline Corp. (PBA) Ex-Dividend Date Scheduled for April 24, 2019.NEWS2: Pembina Pipeline Corp. (PBA) Ex-Dividend Date Scheduled for April 24, 2019.
2019-04-24: NEWS1: Shell: Where Wall Street Ratings Stand ahead of Earnings.NEWS2: SM Energy Company (SM) Ex-Dividend Date Scheduled for April 25, 2019.NEWS3: SM Energy Company (SM) Ex-Dividend Date Scheduled for April 25, 2019.NEWS4: BRIEF-CNOOC China Signs A Petroleum Contract With PetroChina.
2019-04-25: NEWS1: Dorchester Minerals, L.P. (DMLP) Ex-Dividend Date Scheduled for April 26, 2019.NEWS2: Dorchester Minerals, L.P. (DMLP) Ex-Dividend Date Scheduled for April 26, 2019.NEWS3: ONEOK, Inc. (OKE) Ex-Dividend Date Scheduled for April 26, 2019.NEWS4: ONEOK, Inc. (OKE) Ex-Dividend Date Scheduled for April 26, 2019.

Answer: Decrease