sentences:  Visakha Valley School runs the CBSE system of education with teaching from LKG to X + 2 in English medium.The principal is Dr Vallisnath; chairman is district collector, Sri Praveen Kumar (IAS); vice principals are Kalpana Patro and G. Radha.The Model United Nations (generally referred to as MUN in the VVS) is an academic simulation of the United Nations that educates participants about current events, topics in international relations, diplomacy and the United Nations agenda.