an Entity references as follows:
Sienno [ˈɕennɔ] is a village in Lipsko County, Masovian Voivodeship, in east-central Poland. It is the seat of the gmina (administrative district) called Gmina Sienno. It lies some 15 kilometres (9 mi) south-west of Lipsko and 130 km (81 mi) south of Warsaw. The village has a population of 1,000.