original question: Which composition written by [Johnny Mercer] has subject as [Savannah]?
answer: moon river
answer type: Composition.
auxiliary information: Savannah is the oldest city in the U.S. state of Georgia and is the county seat of Chatham County. Established in 1733, the city of Savannah became the British colonial capital of the Province of Georgia and later the first state capital of Georgia. A strategic port city in the American Revolution and during the American Civil War, Savannah is today an industrial center and an important Atlantic seaport. It is Georgia's fifth-largest city and third-largest metropolitan area. Each year Savannah attracts millions of visitors to its cobblestone streets, parks, and notable historic buildings: the birthplace of Juliette Gordon Low, the Georgia Historical Society, the Telfair Academy of Arts and Sciences, the First African Baptist Church, Temple Mickve Israel, and the Central of Georgia Railway roundhouse complex. Savannah's downtown area, which includes the Savannah Historic District, the Savannah Victorian Historic District, and 22 parklike squares, is one of the largest National Historic Landmark Districts in the United States. Downtown Savannah largely retains the original town plan prescribed by founder James Oglethorpe.Johnny Mercer:;Type: Songwriter. ;
Which composition that has subject as [Savannah] was written by [Johnny Mercer]?