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:2021-08-18, Stock:CMCSA, The news for the past five days is as follows:
2021-08-11: NEWS1: Disney (DIS) Option Traders Optimistic Before Earnings.NEWS2: UPDATE 1-McDonald's to require US office workers to get vaccinated; postpones office return.NEWS3: Xfinity Mobile to Offer the Samsung Galaxy Z Fold3 5G and Galaxy Z Flip3 5G.
2021-08-12: NEWS1: 2021 PORTLAND FILM FESTIVAL, PRESENTED BY COMCAST, GOES VIRTUAL WITH
250+ INDEPENDENT FILMS FROM AROUND THE WORLD OCTOBER 6 – NOVEMBER 8.NEWS2: Comcast Has Botched a Golden Opportunity With the Olympics.
2021-08-13: NEWS1: Streaming Olympics: YouTube Viewing During Tokyo Games Jumped Seven Times Over Rio.
2021-08-16: NEWS1: Comcast and NBCUniversal Media Announce Pricing Terms for Their Exchange Offers.NEWS2: Comcast Business Helps Salem Florist’s Business Blossom with Enhanced Connectivity.NEWS3: Comcast NBCUniversal Selects 11 Startups for the Fourth Class of Its LIFT Labs Accelerator, Powered by Techstars.NEWS4: Comcast and NBCUniversal Media Announce Results of Early Tenders in Exchange Offers and Upsize of Exchange Offers.
2021-08-17: NEWS1: IMDb TV Launches Free App on Comcast Platforms, Streamer’s First Pay-TV Partnership.NEWS2: COMCAST NAMES JOHN KELLER SENIOR VICE PRESIDENT FOR THE MOUNTAIN WEST REGION.NEWS3: Is Hulu Becoming Too Successful for Disney?.

Answer: Decrease