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:2021-12-09, Stock:UNH, The news for the past five days is as follows:
2021-12-02: NEWS1: Humana (HUM) Ties Up to Enhance Medicare Advantage Business.NEWS2: Cigna (CI) Offers MA Plans in Florida, Boosts Provider Network.
2021-12-03: NEWS1: UnitedHealth (UNH) Unit Launches Plan, Boosts Arizona Presence.
2021-12-06: NEWS1: Is UnitedHealth Group Inc. (UNH) A Good Stock To Buy?.NEWS2: UnitedHealth Group's Charts Continue to Point Higher.NEWS3: Cigna (CI) Offers MA Plans in Florida, Boosts Provider Network (Revised).
2021-12-07: NEWS1: UnitedHealth Group (UNH) Gains But Lags Market: What You Should Know.NEWS2: America’s Health Rankings 2021 Annual Report Illustrates Complex Picture of America’s Health.NEWS3: Reynolds Funds Inc Buys Costco Wholesale Corp, The Home Depot Inc, Visa Inc, Sells Alibaba ....
2021-12-08: NEWS1: Americafirst Quantitative Funds Buys iShares 7-10 Year Treasury Bond ETF, iShares 10-20 Year ....NEWS2: 10 Pharmaceutical Stocks to Buy According to Efrem Kamen’s Pura Vida Investments.NEWS3: SoftBank Vision Fund 2 Backs Cerebral at $4.8 Billion Valuation.

Answer: Rise