Information:  - Cycle sport is competitive physical activity using bicycles. There are several categories of bicycle racing including road bicycle racing, time trialling, cyclo-cross, mountain bike racing, track cycling, BMX, and cycle speedway. Non-racing cycling sports include artistic cycling, cycle polo, freestyle BMX and mountain bike trials. The Union Cycliste Internationale (UCI) is the world governing body for cycling and international competitive cycling events. The International Human Powered Vehicle Association is the governing body for human-powered vehicles that imposes far fewer restrictions on their design than does the UCI. The UltraMarathon Cycling Association is the governing body for many ultra-distance cycling races.  - Anna Blyth ( born 15 May 1988 ) is an English racing cyclist from Leeds . She began racing at 15 , having been spotted by British Cycling at Benton Park . She joined the World Class Start Programme , becoming a member of the Olympic Development Plan and the Olympic Academy .  - Leeds is a city in West Yorkshire, England. Historically in Yorkshire's West Riding, the history of Leeds can be traced to the 5th century when the name referred to a wooded area of the Kingdom of Elmet. The name has been applied to many administrative entities over the centuries. It changed from being the appellation of a small manorial borough in the 13th century, through several incarnations, to being the name attached to the present metropolitan borough. In the 17th and 18th centuries Leeds became a major centre for the production and trading of wool.  - The Channel Islands (Norman: "Îles d'la Manche", French: "Îles Anglo-Normandes" or "Îles de la Manche") are an archipelago in the English Channel, off the French coast of Normandy. They include two Crown dependencies: the Bailiwick of Jersey, consisting of Jersey, the largest of the islands; and the Bailiwick of Guernsey, consisting of Guernsey, Alderney, Sark and some smaller islands. They are considered the remnants of the Duchy of Normandy, and although they are not part of the United Kingdom, it is responsible for the defence and international relations of the islands. The Crown dependencies are not members of the Commonwealth of Nations nor of the European Union. They have a total population of about 168,000, and the bailiwicks' respective capitals, Saint Helier and Saint Peter Port, have populations of 33,500 and 16,488, respectively. The total area of the islands is 198 km.  - Yorkshire (or ; abbreviated Yorks), formally known as the County of York, is a historic county of Northern England and the largest in the United Kingdom. Due to its great size in comparison to other English counties, functions have been undertaken over time by its subdivisions, which have also been subject to periodic reform. Throughout these changes, Yorkshire has continued to be recognised as a geographical territory and cultural region. The name is familiar and well understood across the United Kingdom and is in common use in the media and the military, and also features in the titles of current areas of civil administration such as North Yorkshire, South Yorkshire, West Yorkshire and East Riding of Yorkshire.  - British Cycling (formerly the British Cycling Federation) is the main national governing body for cycle sport in Great Britain. It administers most competitive cycling in Great Britain, the Channel Islands and the Isle of Man. It represents Britain at the world body, the Union Cycliste Internationale (UCI) and selects national teams, including the Great Britain (GB) Cycling Team for races in Britain and abroad. , it has a total membership of 116,644.  - 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).  - 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.  - England is a country that is part of the United Kingdom. It shares land borders with Scotland to the north and Wales to the west. The Irish Sea lies northwest of England and the Celtic Sea lies to the southwest. England is separated from continental Europe by the North Sea to the east and the English Channel to the south. The country covers five-eighths of the island of Great Britain (which lies in the North Atlantic) in its centre and south; and includes over 100 smaller islands such as the Isles of Scilly, and the Isle of Wight.    After reading the paragraphs above, choose the best answer for the entity that related to 'anna blyth' with the relationship of 'sport'.  Choices: - cycle sport  - cycling  - polo  - sport  - track cycling  - united kingdom
The answer to this question is:
track cycling