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:2018-12-12, Stock:XEL, The news for the past five days is as follows:
2018-12-04: NEWS1: Utility aims for zero carbon emission from electric plants.NEWS2: UPDATE 1-U.S. utility Xcel says aims to be carbon-free by 2050.NEWS3: Major U.S.utility Xcel Energy says it will be carbon-free by 2050.NEWS4: Xcel Energy Aims for Zero-Carbon Electricity by 2050.NEWS5: ALLETE Unit & Xcel Energy Sign Wind Power Sale Agreement.NEWS6: ALLETE Unit & Xcel Energy Sign Wind Power Sale Agreement.NEWS7: ALLETE Unit & Xcel Energy Sign Wind Power Sale Agreement.
2018-12-06: NEWS1: Trump Lifting Hurdle to Coal Plants No One Wants to Clear.
2018-12-07: NEWS1: Xcel CEO Says Nuclear Power Is Key to Meeting Goal to Cut Carbon.NEWS2: Wall Street’s Views on Xcel Energy Stock.
2018-12-10: NEWS1: Detailed Research: Economic Perspectives on Xcel Energy, Franklin Resources, Axalta Coating, Restaurant Brands International, Zimmer Biomet, and Ford Motor — What Drives Growth in Today's Competitive Landscape.
2018-12-11: NEWS1: After Hours Most Active for Dec 11, 2018 :  GPOR, GE, YELP, V, BAC, CMCSA, WFC, AAPL, QQQ, T, SIRI, XEL.NEWS2: After Hours Most Active for Dec 11, 2018 :  GPOR, GE, YELP, V, BAC, CMCSA, WFC, AAPL, QQQ, T, SIRI, XEL.

Answer: Decrease