SAN JUAN, Puerto Rico – A U.S. college student and her boyfriend have been sentenced to four months in prison in the Cayman Islands for violating strict COVID-19 measures following a recent ruling that will be appealed, their attorney said Thursday.Skylar Mack, 18, of Georgia, and Vanjae Ramgeet, 24, of the Cayman Islands, have been in prison since Tuesday, when the ruling was issued.