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:2018-04-06, Stock:PTR, The news for the past five days is as follows:
2018-03-29: NEWS1: China Bourse May Extend Thursday's Gains.NEWS2: China Bourse May Extend Thursday's Gains.NEWS3: ExxonMobil Stock Plunges: Where Will It Be by June 29?.NEWS4: ExxonMobil Stock Plunges: Where Will It Be by June 29?.NEWS5: Why Chevron Is Trading at a Premium.NEWS6: Why Chevron Is Trading at a Premium.NEWS7: Exclusive: Firms complain of contaminated crude from U.S. reserve.
2018-04-02: NEWS1: Soft Star Predicted For China Stock Market.NEWS2: Soft Star Predicted For China Stock Market.
2018-04-03: NEWS1: Oil & Gas Stock Roundup: Concho Strengthens Permian Hold, Tallgrass to Buy MLP.NEWS2: Oil & Gas Stock Roundup: Concho Strengthens Permian Hold, Tallgrass to Buy MLP.NEWS3: Oil & Gas Stock Roundup: Concho Strengthens Permian Hold, Tallgrass to Buy MLP.NEWS4: China Bourse Poised To End Losing Streak.NEWS5: China Bourse Poised To End Losing Streak.NEWS6: CKX Lands, Inc. (CKX) Ex-Dividend Date Scheduled for April 04, 2018.NEWS7: CKX Lands, Inc. (CKX) Ex-Dividend Date Scheduled for April 04, 2018.NEWS8: China's CNPC sells first gasoline to Americas; cargo heads to Bahamas.
2018-04-04: nan
2018-04-05: NEWS1: China Manufacturing & Services PMI Improve: 5 Great Choices.NEWS2: China Manufacturing & Services PMI Improve: 5 Great Choices.NEWS3: China Manufacturing & Services PMI Improve: 5 Great Choices.NEWS4: Pacific Coast Oil Trust (ROYT) Ex-Dividend Date Scheduled for April 06, 2018.NEWS5: Pacific Coast Oil Trust (ROYT) Ex-Dividend Date Scheduled for April 06, 2018.

Answer: Decrease