please answer in detail.

Swifty Enterprises is a large Canadian company traded on the Toronto Stock Exchange. Swifty purchased two copyrights during 2017. The first copyright was purchased on February 1 for $16,100, and was expected to have a useful life until the end of December, 2019. The second copyright was purchased on July 1 for $148,800, and was expected to have an indefinite useful life. Swifty's fiscal year-end was December 31. On July 1, 2018, Swifty paid $7,920 in legal fees to successfully defend the first copyright in court. On September 1, 2018, Swifty determined that the second copyright would no longer have an indefinite useful life, and in fact would have a useful life of another 8 years, beginning September 1, 2018. On April 1, 2019, Swifty sold the second copyright for $155,650. Prepare the journal entries on the books of Swifty to record the above transactions. (Hint: don't forget the year-end amortization entries). (If no entry is required, select "No Entry" for the account titles and enter 0 for the amounts. Credit account titles are automatically indented when amount is entered. Do not indent manually.) Date Account Titles and Explanation Debit Credit Feb. 1, 2017 1201 ec. 31, 2017 ul. 1, 2018 Sept. 1, 2018 Apr. 1, 2019 To record amortization of copyrights)