Definition: In this task, you are given a context, a subject, a relation, and many options. Based on the context, from the options select the object entity that has the given relation with the subject. Answer with text (not indexes).
Input: Context: Europe is a continent that comprises the westernmost part of Eurasia. Europe is bordered by the Arctic Ocean to the north, the Atlantic Ocean to the west, and the Mediterranean Sea to the south. To the east and southeast, Europe is generally considered as separated from Asia by the watershed divides of the Ural and Caucasus Mountains, the Ural River, the Caspian and Black Seas, and the waterways of the Turkish Straits. Yet the non-oceanic borders of Europea concept dating back to classical antiquityare arbitrary. The primarily physiographic term "continent" as applied to Europe also incorporates cultural and political elements whose discontinuities are not always reflected by the continent's current overland boundaries., Casino Stadion is a multi-use stadium in Bregenz , Austria . It is currently used mostly for football matches and is the home ground of SC Bregenz . The stadium holds 11,112 people ., Switzerland, officially the Swiss Confederation, is a federal republic in Europe. It consists of 26 cantons, and the city of Bern is the seat of the federal authorities. 
The country is situated in Western-Central Europe, and is bordered by Italy to the south, France to the west, Germany to the north, and Austria and Liechtenstein to the east. Switzerland is a landlocked country geographically divided between the Alps, the Swiss Plateau and the Jura, spanning an area of . While the Alps occupy the greater part of the territory, the Swiss population of approximately eight million people is concentrated mostly on the plateau, where the largest cities are to be found: among them are the two global cities and economic centres Zürich and Geneva., Lake Constance (German: Bodensee) is a lake on the Rhine at the northern foot of the Alps, and consists of three bodies of water: the "Obersee" ("upper lake"), the "Untersee" ("lower lake"), and a connecting stretch of the Rhine, called the "Seerhein"., A concert is a live music performance in front of an audience. A recital is a concert by a soloist or small group which follows a program, such as featuring the works of a single composer (organ recital). A recitalist is a musician who gives frequent recitals. The invention of the solo piano recital has been attributed to Franz Liszt., Germany, officially the Federal Republic of Germany, is a federal parliamentary republic in central-western Europe. It includes 16 constituent states, covers an area of , and has a largely temperate seasonal climate. With about 82 million inhabitants, Germany is the most populous member state of the European Union. After the United States, it is the second most popular immigration destination in the world. Germany's capital and largest metropolis is Berlin. Other major cities include Hamburg, Munich, Cologne, Frankfurt, Stuttgart and Düsseldorf., The UEFA Intertoto Cup, also abbreviated as UI Cup and originally called the International Football Cup was a summer football competition for European clubs that had not qualified for one of the two major UEFA competitions, the Champions League and the UEFA Cup. The competition was discontinued after the 2008 tournament. Teams who originally would have entered the Intertoto Cup now directly enter the qualifying stages of the UEFA Europa League from this point., A stadium (plural stadiums or stadia) is a place or venue for (mostly) outdoor sports, concerts, or other events and consists of a field or stage either partly or completely surrounded by a tiered structure designed to allow spectators to stand or sit and view the event., Vorarlberg is the westernmost federal state ("Bundesland") of Austria. Although it has the second-smallest area (Vienna is the smallest) and population (Burgenland is less populated), it has the second-highest population density (after Vienna). It borders three countries: Germany (Bavaria and Baden-Württemberg via Lake Constance), Switzerland (Graubünden and St. Gallen) and Liechtenstein. The only Austrian state that shares a border with Vorarlberg is Tyrol to the east., Bregenz is the capital of Vorarlberg, the westernmost federal state of Austria. The city is located on the eastern shores of Lake Constance, the third-largest freshwater lake in Central Europe, between Switzerland in the west and Germany in the northwest., SC Bregenz is an Austrian association football club from Austria, based in the town of Bregenz, which was founded in 1919. They play their home games at the Casino Stadium. They currently participate in the Austrian Regional League. They participated in the UEFA Intertoto Cup in 2002 and 2004, exiting in the Second and First rounds respectively., Subject: casino stadium, Relation: located_in_the_administrative_territorial_entity, Options: (A) atlantic ocean (B) austria (C) berlin (D) bern (E) bodensee (F) burgenland (G) central (H) düsseldorf (I) east (J) europe (K) european union (L) france (M) frankfurt (N) germany (O) italy (P) jura (Q) of (R) rhine (S) stadium (T) switzerland (U) tyrol (V) union (W) vorarlberg (X) west
Output:
vorarlberg