Title: Vorpommern-Rügen – Vorpommern-Greifswald I
Content:  Vorpommern-Rügen – Vorpommern-Greifswald I is located in northeast Mecklenburg-Vorpommern. As of the 2021 federal election, it comprises the entirety of the Vorpommern-Rügen district, as well as the municipality of Greifswald and the Amt of Landhagen from the Vorpommern-Greifswald district.
Title: Vorpommern-Rügen
Content:  Vorpommern-Rügen is a district in the north of Mecklenburg-Vorpommern, Germany. It is bounded by (from the west and clockwise) the Baltic Sea and the districts Vorpommern-Greifswald, Mecklenburgische Seenplatte and Rostock. The district seat is the Hanseatic city of Stralsund. Vorpommern-Rügen is characterized by diverse shore line landscapes with many lagoons, beaches and cliff lines, part of them protected in the Western Pomerania Lagoon Area National Park and in the Jasmund National Park. The area is also a very popular destination for national and international tourism, including Rügen, the biggest island of Germany, the island of Hiddensee, the Fischland-Darss-Zingst peninsula and its adjacent town of Barth with the Stralsund Barth Airport, the port of Sassnitz and the UNESCO World Heritage city of Stralsund. The Vorpommern-Rügen district is one of the most popular places for national and international tourism in Germany, thanks to its unique protected nature, good infrastructure, popular resort architecture spas, historical towns and vast beaches at the shores of the Baltic Sea.
Title: Vorpommern-Rügen
Content:  Vorpommern-Rügen District was established by merging the former districts of Nordvorpommern and Rügen; along with the former district-free city of Stralsund as part of the local government reform of September 2011. The name of the district was decided by referendum on 4 September 2011. The project name for the district was Nordvorpommern.
Title: Bergen auf Rügen
Content:  Bergen auf Rügen is the capital of the former district of Rügen in the middle of the island of Rügen in Mecklenburg-Western Pomerania, Germany. Since 1 January 2005, Bergen has moreover been the administrative seat of the Amt of Bergen auf Rügen, which with a population of over 23,000 is Mecklenburg-Vorpommern's most populous Amt.
Title: Rügen (district)
Content:  Rügen was a Kreis (district) in the northeastern part of Mecklenburg-Western Pomerania, Germany. The district was bordered entirely by the Baltic Sea. The nearest districts were Nordvorpommern and the district-free city Stralsund. The district covered the islands Rügen and Hiddensee, and several small islands like Ummanz and Vilm. It was thus the only district of Germany which consists solely of islands.
Title: Vorpommern-Rügen
Content:   The district has a number of lakes, which include:
Title: Nordvorpommern
Content:  Nordvorpommern ("North Western Pomerania") was a Kreis (district) in the northern part of Mecklenburg-Vorpommern, Germany. It was situated at the coast of the Baltic Sea, where it enclosed the city of Stralsund. Further to the northeast, separated from Stralsund and Nordvorpommern by the Strelasund, lies the island of Rügen, administratively part of the eponymous district. Other neighboring districts are (from east clockwise) Ostvorpommern, Demmin, Güstrow and Bad Doberan.
Title: Rügen
Content:  Administratively, Rügen is part of the district Vorpommern-Rügen. Its subdivisions are the Ämter Bergen auf Rügen (municipalities Bergen auf Rügen, Buschvitz, Garz, Gustow, Lietzow, Parchtitz, Patzig, Poseritz, Ralswiek, Rappin, Sehlen and Thesenvitz), West-Rügen (municipalities Altefähr, Dreschvitz, Gingst, Hiddensee, Kluis, Neuenkirchen, Rambin, Samtens, Schaprode, Trent and Ummanz), Nord-Rügen (municipalities Altenkirchen, Breege, Dranske, Glowe, Lohme, Putgarten, Sagard, Wiek) and Mönchgut-Granitz (municipalities Baabe, Göhren, Lancken-Granitz, Middelhagen, Sellin, Thiessow and Zirkow) and the Amt-free municipalities of Binz, Putbus and Sassnitz. Overall, there are 45 municipalities on Rügen, four of which have town status (Bergen, Garz, Putbus and Sassnitz).
Title: Mecklenburg-Vorpommern
Content:  Mecklenburg-Vorpommern (MV;, Mecklenburgian Mäkelborg-Vörpommern), internationally also known by its anglicized name Mecklenburg-Western Pomerania, is a state in the north-east of Germany. Of the country's sixteen states, Mecklenburg-Vorpommern ranks 14th in population, 6th in area, and 16th in population density. Schwerin is the state capital and Rostock is the largest city. Other major cities include Neubrandenburg, Stralsund, Greifswald, Wismar and Güstrow. The state was established in 1945 after World War II through the merger of the historic regions of Mecklenburg and the Prussian Western Pomerania by the Soviet military administration in Allied-occupied Germany. It became part of the German Democratic Republic in 1949, but was dissolved in 1952 during administrative reforms and its territory divided into the districts of Rostock, Schwerin, and Neubrandenburg. A 
Title: Mecklenburg-Vorpommern
Content:  Sixth-largest in area and fourteenth in overall population among Germany's sixteen Bundesländer (federal states), Mecklenburg-Vorpommern is bounded to the north by the Baltic Sea, to the west by Schleswig-Holstein, to the southwest by Lower Saxony, to the south by Brandenburg, and to the east by the West Pomeranian Voivodeship in Poland. Mecklenburg-Vorpommern's state capital is Schwerin. The largest city is Rostock with approximately 205,000 people, followed by Schwerin. Other major cities include Neubrandenburg, Stralsund, Greifswald, Wismar and Güstrow.

Question: What is the capital of Vorpommern-Rügen District?
Answer: Stralsund.