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:2019-12-30, Stock:COP, The news for the past five days is as follows:
2019-12-20: nan
2019-12-23: NEWS1: Derailed Canadian Pacific train was carrying ConocoPhillips oil: media.NEWS2: An Intrinsic Calculation For ConocoPhillips Company (NYSE:COP) Suggests It's 23% Undervalued.
2019-12-24: NEWS1: ConocoPhillips (COP) Gains As Market Dips: What You Should Know.
2019-12-26: NEWS1: Here are Wall Street’s favorite stocks for an oil-sector recovery in 2020.NEWS2: Should You Invest in the Fidelity MSCI Energy Index ETF (FENY)?.
2019-12-27: NEWS1: 2019 Review: Most Favored Hedge Fund Stocks vs. ConocoPhillips Company (COP).NEWS2: Shale's Amazing, World-Changing, Lousy Decade.NEWS3: A Useful Tool: The Piotroski F-Score.

Answer: Decrease