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:2019-01-07, Stock:NGG, The news for the past five days is as follows:
2018-12-28: NEWS1: European Markets Move Higher As Buying Resumes.NEWS2: European Markets Move Higher As Buying Resumes.
2018-12-31: NEWS1: First Week of NGG February 2019 Options Trading.NEWS2: First Week of NGG February 2019 Options Trading.
2019-01-02: nan
2019-01-03: NEWS1: National Grid, unions have tentative agreement after lockout.
2019-01-04: nan

Answer: Decrease