Information: - Kosovo is a disputed territory and partially recognised state in Southeast Europe that declared independence from Serbia in February 2008 as the Republic of Kosovo. Kosovo is landlocked in the central Balkan Peninsula. Its capital and largest city is Pristina. It is bordered by the Republic of Macedonia and Albania to the south, Montenegro to the west, and the uncontested territory of Serbia to the north and east. While Serbia recognises administration of the territory by Kosovo's elected government, it still continues to claim it as its own Autonomous Province of Kosovo and Metohija. - G17 Plus ( G17 + ) , was a liberal - conservative political party in Serbia that existed from 2002 until 2013 when it merged into the United Regions of Serbia ( URS ) . Founded as a non-governmental organization dealing with economic issues , in 2002 it transformed into a political party that became part of several ruling coalition governments in Serbia throughout the 2000s and early 2010s . - Romania is a sovereign state located in Southeastern Europe. It borders the Black Sea, Bulgaria, Ukraine, Hungary, Serbia, and Moldova. It has an area of and a temperate-continental climate. With 19.94 million inhabitants, the country is the seventh-most-populous member state of the European Union. The capital and largest city, Bucharest, with its 1,883,425 inhabitants is the sixth-largest city in the EU. - Serbia, officially the Republic of Serbia, is a sovereign state situated at the crossroads of Central and Southeast Europe, covering the southern part of the Pannonian Plain and the central Balkans. Relative to its small territory, it is a diverse country distinguished by a "transitional" character, situated along cultural, geographic, climatic and other boundaries. Serbia is landlocked and borders Hungary to the north; Romania and Bulgaria to the east; Macedonia to the south; and Croatia, Bosnia-Herzegovina, and Montenegro to the southwest; it also claims a border with Albania through the disputed territory of Kosovo. Serbia numbers around 7 million residents, and its capital, Belgrade, ranks among the largest cities in Southeast Europe. - Hungary is a unitary parliamentary republic in Central Europe. It covers an area of , situated in the Carpathian Basin and bordered by Slovakia to the north, Romania to the east, Serbia to the south, Croatia to the southwest, Slovenia to the west, Austria to the northwest, and Ukraine to the northeast. With about 10 million inhabitants, Hungary is a medium-sized member state of the European Union. The official language is Hungarian, which is the most widely spoken Uralic language in the world. Hungary's capital and largest metropolis is Budapest, a significant economic hub, classified as an Alpha- global city. Major urban areas include Debrecen, Szeged, Miskolc, Pecs and Gyr. - The United Regions of Serbia was a regionalist and liberal-conservative political party in Serbia. It was founded on 16 May 2010 as a political coalition, and became a unified political party on 21 April 2013. The URS advocated decentralization and was pro-business. What entity does 'g17 plus' has the relation 'dissolved or abolished' with?
The answer to this question is:
21 april 2013