Question: Information: - LAlpe d'Huez is a ski resort at . It is a mountain pasture in the Central French Alps, in the commune of Huez, which is part of the department of Isere in the region of Rhone-Alpes. It is part of the massif, over the Oisans, and is from Grenoble. The Alpe d'Huez resort is accessible from Grenoble by the , which runs along the Romanche Valley passing through the communes of Livet-et-Gavet and Le Bourg-d'Oisans as well as Haut-Oisans via the Col de Sarenne. Alpe d'Huez is used regularly in the Tour de France cycle race, including twice on the same day in 2013. - 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. - A stopwatch is a handheld timepiece designed to measure the amount of time elapsed from a particular time when it is activated to the time when the piece is deactivated. A large digital version of a stopwatch designed for viewing at a distance, as in a sports stadium, is called a stopclock. In manual timing, the clock is started and stopped by a person pressing a button. In fully automatic time, both starting and stopping are triggered automatically, by sensors. - Asia is Earth's largest and most populous continent, located primarily in the eastern and northern hemispheres and sharing the continental landmass of Eurasia with the continent of Europe. Asia covers an area of , about 30% of Earth's total land area and 8.7% of the Earth's total surface area. The continent, which has long been home to the majority of the human population, was the site of many of the first civilizations. Asia is notable for not only its overall large size and population, but also dense and large settlements as well as vast barely populated regions within the continent of 4.4 billion people. - The Union Cycliste Internationale, commonly known by the acronym UCI, is the world governing body for sports cycling and oversees international competitive cycling events. The UCI is based in Aigle, Switzerland. - Aigle (French for "eagle") is a historic town and a municipality and the capital of the district of Aigle in the canton of Vaud in Switzerland. - The UCI World Tour (20092010: "UCI World Ranking") is the premier annual male elite road cycling tour. It refers to both the tour of 28 events and an annual ranking system based upon performances in these. The World Ranking was launched in 2009, and merged fully with its predecessor the UCI ProTour in 2011. - Cycling, also called bicycling or biking, is the use of bicycles for transport, recreation, exercise or sport. Persons engaged in cycling are referred to as "cyclists", "bikers", or less commonly, as "bicyclists". Apart from two-wheeled bicycles, "cycling" also includes the riding of unicycles, tricycles, quadracycles, recumbent and similar human-powered vehicles (HPVs). - Road bicycle racing is a bicycle racing sport held on paved roads. Road racing is the most popular professional form of bicycle racing, in terms of numbers of competitors, events and spectators. Races can typically be split into 'mass-start' events where riders start simultaneously (though sometimes with a handicap), racing to set finish point, or individual and team time trials where riders or teams race a course individually against the clock. - A cycling team is a group of cyclists who join a team or are acquired and train together to compete in bicycle races whether amateur or professional and the supporting personnel. Cycling teams are most important in road bicycle racing, which is a team sport, but collaboration between team members is also important in track cycling and cyclo-cross. - The UCI Continental Circuits are continental circuits for a series of road bicycle racing competitions since 2005. The five circuits (each representing Africa, the Americas, Asia, Europe and Oceania continents) are inferior to the UCI World Tour. Both the World Tour and the Continental Circuits comprise a series of races in which various cycling teams compete regularly. It is introduced by the Union Cycliste Internationale (UCI) to provide an adequate and realistic context in order to encourage the expansion of cycling, everywhere in the world. - A velodrome is an arena for track cycling. Modern velodromes feature steeply banked oval tracks, consisting of two 180-degree circular bends connected by two straights. The straights transition to the circular turn through a moderate easement curve. - A team time trial (TTT) is a road-based bicycle race in which teams of cyclists race against the clock (see individual time trial for a more detailed description of ITT events). - An individual time trial (ITT) is a road bicycle race in which cyclists race alone against the clock on flat or rolling terrain, or up a mountain road such as Alpe d'Huez (in French: "contre la montre" literally "against the watch", in Italian: "tappa a cronometro" "stopwatch stage"). There are also track-based time trials where riders compete in velodromes, and team time trials (TTT). ITTs are also referred to as "the race of truth", as winning depends only on each rider's strength and endurance, and not on help provided by team-mates and others riding ahead and creating a slipstream. The opening stage of stage race will often be a short individual time trial called a prologue. - An acronym is a word or name formed as an abbreviation from the initial components in a phrase or a word, usually individual letters (as in "NATO" or "laser") and sometimes syllables (as in "Benelux"). - A slipstream is a region behind a moving object in which a wake of fluid (typically air or water) is moving at velocities comparable to the moving object, relative to the ambient fluid through which the object is moving. The term slipstream also applies to the similar region adjacent to an object with a fluid moving around it. "Slipstreaming" or "drafting" works because of the relative motion of the fluid in the slipstream. - Africa is the world's second-largest and second-most-populous continent. At about 30.3 million km (11.7 million squaremiles) including adjacent islands, it covers 6% of Earth's total surface area and 20.4 % of its total land area. With 1.1 billion people as of 2013, it accounts for about 15% of the world's human population. The continent is surrounded by the Mediterranean Sea to the north, both the Suez Canal and the Red Sea along the Sinai Peninsula to the northeast, the Indian Ocean to the southeast, and the Atlantic Ocean to the west. The continent includes Madagascar and various archipelagos. It contains 54 fully recognized sovereign states (countries), nine territories and two "de facto" independent states with limited or no recognition. - The Americas, also collectively called America, encompass the totality of the continents of North America and South America. Together they make up most of Earth's western hemisphere and comprise the "New World". - The Tour de San Luis is a road cycling race held in San Luis Province , Argentina . The race consists of a competition over an individual time trial , and six stages . The competition carries a UCI rating of 2.1 , and is part of the UCI America Tour , which is one of five UCI Continental Circuits sponsored by the Union Cycliste Internationale , the sport 's international governing body . - Oceania (or ), also known as Oceanica, is a region centred on the islands of the tropical Pacific Ocean. Opinions of what constitutes Oceania range from its three subregions of Melanesia, Micronesia, and Polynesia to, more broadly, the entire insular region between Southeast Asia and the Americas, including Australasia and the Malay Archipelago. After reading the paragraphs above, we are interested in knowing the entity with which 'tour de san luis' exhibits the relationship of 'subclass of'. Find the answer from the choices below. Choices: - a road - area - arena - bicycle - canal - capital - clock - concept - continent - curve - cycling - department - description - digital - distance - district - fluid - french - group - handicap - home - human - individual time trial - laser - malay - measure - motion - mountain - name - object - ocean - opening - people - person - phrase - point - population - premier - racing - range - river - road - sea - second - series - split - stage race - surface - team - team sport - term - terrain - time - town - track - track cycling - trial - turkish - valley - watch - water - western - word - world
Answer:
stage race