A young woman accused of dousing her family’s home in Fayette with gasoline and setting it on fire while her parents and three siblings slept has been ordered to spend five years in prison. Alyssa Jensen pleaded guilty Thursday in Kennebec County Superior Court to charges of arson and attempted murder. Jensen was angry with her mother and wanted to burn the house and kill her, Deputy District Attorney Alan Kelley said. The defendant’s father, mother, a brother and two sisters were asleep on July 13, 2003, when the fire broke out. Jensen was 18 when the crime occurred. The family, which had moved from Wisconsin nine months earlier, escaped without serious injury. The single-story wooden structure was destroyed.