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:2018-08-30, Stock:ABT, The news for the past five days is as follows:
2018-08-23: nan
2018-08-24: NEWS1: A Performance Overview of Roche’s Diagnostics Division.NEWS2: [$$] ‘Brutal’ Australian politics behind demise of PM Turnbull.
2018-08-27: nan
2018-08-28: NEWS1: Abbott Laboratories -- Moody's upgrades Abbott Laboratories' senior unsecured rating to Baa1, outlook remains positive.
2018-08-29: nan

Answer: Decrease