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:2020-02-07, Stock:PTR, The news for the past five days is as follows:
2020-01-31: NEWS1: The Zacks Analyst Blog Highlights: Apple, PetroChina, Lockheed Martin, Morgan Stanley and Square.
2020-02-03: NEWS1: Commodities Hammered in China by Virus-Driven Demand Fears.
2020-02-04: NEWS1: Virus Jolts China Economy, Forcing Rethink on Almost Everything.
2020-02-05: nan
2020-02-06: NEWS1: China's biggest liquefied gas importer suspends some contracts as virus spreads.NEWS2: Commodity Chaos Deepens as China LNG Buyer Invokes Force Majeure.

Answer: Decrease