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:2019-07-02, Stock:VALE, The news for the past five days is as follows:
2019-06-25: nan
2019-06-26: nan
2019-06-27: nan
2019-06-28: NEWS1: Vale to Spend $471M on Safety Measures, Rebuilding Activity.NEWS2: Vale to Spend $471M on Safety Measures, Rebuilding Activity.NEWS3: Vale to Spend $471M on Safety Measures, Rebuilding Activity.
2019-07-01: NEWS1: Australia's Iron Exports to Drop for First Time in 18 Years.

Answer: Decrease