Context: Italy, officially the Italian Republic, is a unitary parliamentary republic in Europe. Located in the heart of the Mediterranean Sea, Italy shares open land borders with France, Switzerland, Austria, Slovenia, San Marino and Vatican City. Italy covers an area of and has a largely temperate seasonal climate and Mediterranean climate; due to its shape, it is often referred to in Italy as "lo Stivale" (the Boot). With 61 million inhabitants, it is the fourth most populous EU member state., South Tyrol (German and ), also known by its alternative Italian name Alto Adige, is an autonomous province in northern Italy. It is one of the two autonomous provinces that make up the autonomous region of Trentino-Alto Adige/Südtirol. The province has an area of and a total population of 511,750 inhabitants (31.12.2011). Its capital is the city of Bolzano (German: "Bozen"; Ladin: "Balsan" or "Bulsan").
According to 2014 data based on the 2011 census, 62.3 percent of the population speaks German (Standard German in the written norm and an Austro-Bavarian dialect in the spoken form); 23.4 percent of the population speaks Italian, mainly in and around the two largest cities (Bolzano and Merano); 4.1 percent speaks Ladin, a Rhaeto-Romance language; 10.2% of the population (mainly recent immigrants) speaks another language as first language., Slovenia, officially the Republic of Slovenia (Slovene: , abbr.: "RS"), is a nation state in southern Central Europe, located at the crossroads of main European cultural and trade routes. It is bordered by Italy to the west, Austria to the north, Hungary to the northeast, Croatia to the south and southeast, and the Adriatic Sea to the southwest. It covers and has a population of 2.06 million. It is a parliamentary republic and a member of the United Nations, European Union, and NATO. The capital and largest city is Ljubljana., The Mediterranean Sea (pronounced ) is a sea connected to the Atlantic Ocean, surrounded by the Mediterranean Basin and almost completely enclosed by land: on the north by Southern Europe and Anatolia, on the south by North Africa, and on the east by the Levant. The sea is sometimes considered a part of the Atlantic Ocean, although it is usually identified as a separate body of water., The Tauferer Ahrntal denotes the valley of the Ahr River, a tributary valley of the Puster Valley in South Tyrol, Italy. It is commonly divided into the Tauferer Tal ("Val di Tures"), stretching from the confluence with the Rienz River near Bruneck up to Sand in Taufers, and the Ahrntal ("Valle Aurina") proper up to the source in Prettau., The Ahr ( Italian : Aurino ) is a river in South Tyrol , Italy , which flows through the Tauferer Ahrntal ., A mediterranean climate or dry summer climate is the climate typical of the lands in the Mediterranean Basin. The lands around the Mediterranean Sea form the largest area where this climate type is found, but it also is found in most of coastal California, in parts of Western and South Australia, in southwestern South Africa, sections of Central Asia, and in central Chile., Merano or Meran is a town and "comune" in South Tyrol, northern Italy. Generally best known for its spa resorts, it is located within a basin, surrounded by mountains standing up to above sea level, at the entrance to the Passeier Valley and the Vinschgau., A boot is a type of footwear and a specific type of shoe. Most boots mainly cover the foot and the ankle, while some also cover some part of the lower calf. Some boots extend up the leg, sometimes as far as the knee or even the hip. Most boots have a heel that is clearly distinguishable from the rest of the sole, even if the two are made of one piece. Traditionally made of leather or rubber, modern boots are made from a variety of materials. Boots are worn both for their functionality  protecting the foot and leg from water, extreme cold, mud or hazards (e.g., work boots may protect wearers from chemicals or use a steel toe) or providing additional ankle support for strenuous activities with added traction requirements (e.g., hiking)  and for reasons of style and fashion., San Marino, officially the Republic of San Marino, also known as the Most Serene Republic of San Marino, is an enclaved microstate surrounded by Italy, situated on the Italian Peninsula on the northeastern side of the Apennine Mountains. Its size is just over , with a population of 33,562. Its capital is the City of San Marino and its largest city is Dogana. San Marino has the smallest population of all the members of the Council of Europe., The Rienz is a river in South Tyrol, Italy. Its source is located at 2,180 m of altitude, in the Dolomites mountains, south of Toblach: near Toblach it enters in the Puster Valley, and, after , it meets the Eisack river in the city of Brixen, at 550 m of altitude., France, officially the French Republic, is a country with territory in western Europe and several overseas regions and territories. The European, or metropolitan, area of France extends from the Mediterranean Sea to the English Channel and the North Sea, and from the Rhine to the Atlantic Ocean. Overseas France include French Guiana on the South American continent and several island territories in the Atlantic, Pacific and Indian oceans. France spans and had a total population of almost 67 million people as of January 2017. It is a unitary semi-presidential republic with the capital in Paris, the country's largest city and main cultural and commercial centre. Other major urban centres include Marseille, Lyon, Lille, Nice, Toulouse and Bordeaux., The Adige is a river with its source in the Alpine province of South Tyrol near the Italian border with Austria and Switzerland. At in length, it is the second longest river in Italy, after the Po river at ., Trentino-Alto Adige/Südtirol (; ) is an autonomous region in Northern Italy. Since the 1970s, most legislative and administrative powers have been transferred to the two self-governing provinces that make up the region: Trentino and South Tyrol., Subject: ahr , Relation: mouth_of_the_watercourse, Options: (A) adige (B) atlantic ocean (C) main (D) mud (E) north sea (F) rienz (G) san (H) sea
Output: rienz