Snow Co. is a machine manufacturer. The company also gives maintenance services. Snow Co. agreed to sell a machine and a 4-year maintenance service to its customer at 300.000 $ on 1 December 2018. The machine and maintenance service can be sold separately. The machine has a price of 255.000$ and 4-year service has a price of 85.000$. Snow Co. installed the machine to the customers factory on 1 January 2019 and collected all sales revenue on this date. Make the necessary journal entries until 31 December 2019.