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:2020-02-24, Stock:snap, The news for the past five days is as follows:
2020-02-14: nan
2020-02-18: NEWS1: Twitter Buys Chroma Labs, Startup Founded by Facebook Veterans.
2020-02-19: NEWS1: Snap accelerator names its latest cohort.NEWS2: Snap invites 10 startups to chat at Yellow accelerator.
2020-02-20: nan
2020-02-21: NEWS1: Social Media Stocks That Are Here To Stay.NEWS2: The Top 3 Internet Stocks Surging in 2020.

Answer: Decrease