Bloomberg provides stock market data to investors. (a) On January 1, 2019, it sells a customer access to its real-time database for two years at a price of $600,000. The customer has the right to access Bloomberg database any time, 24 hours per day, to obtain real-time data about stock prices around the world. (b) On the same date, Bloomberg sells to another customer for $150,000 access to 20 years of historical data for the next two years. The customer has the right to access the data, containing historical information for 1999-2018, 24 hours per day and is also free to download the data a retain it after the two-year access to Bloomberg system has expired. How much revenue should Bloomberg record in 2019 on each (Contract (a) and (b)) of the contracts? Why?