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:2021-07-06, Stock:RIO, The news for the past five days is as follows:
2021-06-28: nan
2021-06-29: NEWS1: Rio Tinto declares force majeure at Richards Bay Minerals.NEWS2: 3 Iron Stocks to Buy as Iron Ore Price Trends Above $220 Per Ton.
2021-06-30: NEWS1: Rio Tinto Declares Force Majeure in S. Africa After Violence.NEWS2: Biggest China Bank Abandons $3 Billion Zimbabwe Coal Plan.NEWS3: Dixons Carphone online sales surge.
2021-07-01: nan
2021-07-02: nan

Answer: Decrease