Question: Which major Russian city borders the body of water in which Saaremaa is located?

full_context: Document 1: Estonia: Estonia (i/ɛˈstoʊniə/; Estonian: Eesti [ˈeːsti]), officially the Republic of Estonia (Estonian: Eesti Vabariik), is a country in the Baltic region of Northern Europe. It is bordered to the north by the Gulf of Finland, to the west by the Baltic Sea, to the south by Latvia (343 km), and to the east by Lake Peipus and Russia (338.6 km). Across the Baltic Sea lies Sweden in the west and Finland in the north. The territory of Estonia consists of a mainland and 2,222 islands and islets in the Baltic Sea, covering 45,339 km2 (17,505 sq mi) of land, and is influenced by a humid continental climate.
Document 2: Estonia: The superior god of Oeselians as described by Henry of Latvia was called Tharapita. According to the legend in the chronicle Tharapita was born on a forested mountain in Virumaa (Latin: Vironia), mainland Estonia from where he flew to Oesel, Saaremaa The name Taarapita has been interpreted as "Taara, help!"/"Thor, help!" (Taara a(v)ita in Estonian) or "Taara keeper"/"Thor keeper" (Taara pidaja) Taara is associated with the Scandinavian god Thor. The story of Tharapita's or Taara's flight from Vironia to Saaremaa has been associated with a major meteor disaster estimated to have happened in 660 ± 85 BC that formed Kaali crater in Saaremaa.
Document 3: Estonia: The Oeselians or Osilians (Estonian saarlased; singular: saarlane) were a historical subdivision of Estonians inhabiting Saaremaa (Danish: Øsel; German: Ösel; Swedish: Ösel), an Estonian island in the Baltic Sea. They were first mentioned as early as the second century BC in Ptolemy's Geography III. The Oeselians were known in the Old Norse Icelandic Sagas and in Heimskringla as Víkingr frá Esthland (Estonian Vikings). Their sailing vessels were called pirate ships by Henry of Latvia in his Latin chronicles written at the beginning of the 13th century.
Document 4: Estonian language: Writings in Estonian became significant only in the 19th century with the spread of the ideas of the Age of Enlightenment, during the Estophile Enlightenment Period (1750–1840). Although Baltic Germans at large regarded the future of Estonians as being a fusion with themselves, the Estophile educated class admired the ancient culture of the Estonians and their era of freedom before the conquests by Danes and Germans in the 13th century.
Document 5: Estonia: In 2005, Estonia joined the European Union's Nordic Battle Group. It has also shown continued interest in joining the Nordic Council. Whereas in 1992 Russia accounted for 92% of Estonia's international trade, today there is extensive economic interdependence between Estonia and its Nordic neighbours: three quarters of foreign investment in Estonia originates in the Nordic countries (principally Finland and Sweden), to which Estonia sends 42% of its exports (as compared to 6.5% going to Russia, 8.8% to Latvia, and 4.7% to Lithuania). On the other hand, the Estonian political system, its flat rate of income tax, and its non-welfare-state model distinguish it from the Nordic countries and their Nordic model, and indeed from many other European countries.
Document 6: Baltic Sea: The Baltic Sea was known in ancient Latin language sources as Mare Suebicum or Mare Germanicum. Older native names in languages that used to be spoken on the shores of the sea or near it usually indicate the geographical location of the sea (in Germanic languages), or its size in relation to smaller gulfs (in Old Latvian), or tribes associated with it (in Old Russian the sea was known as the Varanghian Sea). In modern languages it is known by the equivalents of ``East Sea '',`` West Sea'', or ``Baltic Sea ''in different languages:
Document 7: Poland: Poland is bordered by the Baltic Sea, Lithuania, and Russia's Kaliningrad Oblast to the north, Belarus and Ukraine to the east, Slovakia and the Czech Republic to the south, and Germany to the west.
Document 8: Baltic Sea: Since May 2004, with the accession of the Baltic states and Poland, the Baltic Sea has been almost entirely surrounded by countries of the European Union (EU). The only remaining non-EU shore areas are Russian: the Saint Petersburg area and the exclave of the Kaliningrad Oblast.
Document 9: Kaliningrad: Kaliningrad (Russian: Калининград, IPA: (kəljɪnjɪnˈɡrat); former German name: Königsberg; Yiddish: קעניגסבערג, Kenigsberg; Russian: Кёнигсберг, tr. Kyonigsberg; Old Prussian: Twangste, Kunnegsgarbs, Knigsberg) is the administrative center of Kaliningrad Oblast, a Russian exclave between Poland and Lithuania on the Baltic Sea.
Document 10: Baltic region: The terms Baltic region, Baltic Rim countries (or simply Baltic Rim), and the Baltic Sea countries refer to slightly different combinations of countries in the general area surrounding the Baltic Sea in Northern Europe.
Document 11: Viking Age: The Viking Age (793 -- 1066 AD) is a period in European history, especially Northern European and Scandinavian history, following the Germanic Iron Age. It is the period of history when Scandinavian Norsemen explored Europe by its seas and rivers for trade, raids, colonization, and conquest. In this period, the Norsemen settled in Norse Greenland, Newfoundland, and present - day Faroe Islands, Iceland, Norway, Sweden, Normandy, Scotland, England, Ireland, Isle of Man, the Netherlands, Germany, Ukraine, Russia, and Turkey.
Document 12: Latvia: Latvia ( or ; , ), officially the Republic of Latvia (, ), is a country in the Baltic region of Northern Europe. Since its independence, Latvia has been referred to as one of the Baltic states. It is bordered by Estonia to the north, Lithuania to the south, Russia to the east, and Belarus to the southeast, and shares a maritime border with Sweden to the west. Latvia has 1,957,200 inhabitants and a territory of . The country has a temperate seasonal climate.
Document 13: Vilsandi: The island of Vilsandi, Saaremaa Parish, Saare County, Estonia is located in the Baltic Sea. It covers an area of some 9 square km and is the westernmost populated island in Estonia. The surrounding waters are shallow and rocky and many ships travelling the Baltic have perished nearby. The island of Vilsandi can be reached by boat, by truck having suitable clearance or on foot by wading from Saaremaa. Much of the island is now part of Vilsandi National Park, which grew from a bird reserve founded in 1910. It is a highly sensitive ecosystem due to the use of the area by many migratory birds as a breeding and nesting ground. Hunting is absolutely prohibited. This park is a popular tourist destination not only for local Estonians, but also people of Finland who are visiting Estonia in greater and greater numbers.
Document 14: Estonian language: The oldest written records of the Finnic languages of Estonia date from the 13th century. Originates Livoniae in Chronicle of Henry of Livonia contains Estonian place names, words and fragments of sentences.
Document 15: British Isles: Ireland and the United Kingdom are both part of the European Union (EU). The Crown Dependencies are not a part of the EU however do participate in certain aspects that were negotiated as a part of the UK's accession to the EU. Neither the United Kingdom or Ireland are part of the Schengen area, that allow passport-free travel between EU members states. However, since the partition of Ireland, an informal free-travel area had existed across the region. In 1997, this area required formal recognition during the course of negotiations for the Amsterdam Treaty of the European Union and is now known as the Common Travel Area.
ground_truth: Saint Petersburg
sub_queries: Where is Saaremaa located? Answer: the Baltic Sea
which major russian city borders the Baltic Sea Answer: Saint Petersburg