sentences:  Tiana, Sardinia
  
  Tiana, Tìana in sardinian language, is a "comune" (municipality) in the Province of Nuoro in the Italian region Sardinia, located in a valley on the slopes of Gennargentu mountain in the Ollolai Barbagia, about north of Cagliari and about southwest of Nuoro.As of 31 December 2004, it had a population of 547 and an area of .