sentences:  While in the country, where he lives, Ernest goes by the name of Jack (which he believes to be his real name) and pretends that he has a wastrel brother named Ernest, who lives in London and requires his frequent attention.Jack must assume a serious attitude for the benefit of his young ward, Cecily, an 18-year-old heiress and granddaughter of Jack's late adoptive father.When in the city, he becomes the profligate Ernest.