Information:  - The Tour of California (officially known as the Amgen Tour of California for sponsorship purposes) is an annual professional cycling stage race on the UCI America Tour and USA Cycling Professional Tour. It was first held in 2006. The eight-day race covers 650700 miles (1,0451,126 km) through the U.S. state of California. A typical edition might begin in Nevada City, travel through the redwoods, wine country and the Pacific Coast, and finish in a southern California city such as Escondido. The 2009 race crossed the Central Valley from Merced to Fresno, with an excursion through the Sierra Nevada foothills, before crossing over to the coast. The tour is sponsored by Amgen, a large California-based biotech company.  - 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 2010 Tour of California was the fifth running of the Tour of California cycling stage race . It was held from May 16 -- 23 , and was the first edition of the race held in the month of May , after the first four occurred in February . It was rated as a 2.HC event on the UCI America Tour . It began in Nevada City and concluded in the Agoura Hills . The event 's move to later in the year has made it so the route was different from previous editions of the race , and also provided for a different makeup of ridership , as it conflicted with the 2010 Giro d'Italia . The race was won by Team HTC -- Columbia rider Michael Rogers , who held off Garmin -- Transitions ' David Zabriskie and Levi Leipheimer of Team RadioShack . In other classifications , Liquigas -- Doimo 's Peter Sagan won both the points and young rider classifications , Thomas Rabou of Team Type 1 won the mountains classification and Garmin - Transitions won the teams classification .  - The USA Cycling Professional Tour is a professional road bicycle racing series organized by USA Cycling.    What is the relationship between '2010 tour of california' and 'road bicycle racing'?
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Answer: sport


Information:  - The Comet V railcar is the fifth generation of the Comet railcar series . Produced by the manufacturer Alstom , the Comet V is a much different type of car compared to previous versions of the series . The Comet V began servicing New York metropolitan area commuter rail operators New Jersey Transit and Metro - North in April 2002 .  - Pendolino (from Italian "pendolo" "pendulum", and "-ino," a diminutive suffix) is an Italian family of tilting trains used in Italy, Spain, Portugal, Slovenia, Finland, Russian Federation, the Czech Republic, the United Kingdom, Slovakia, Switzerland, China, and Poland, and soon Romania. Based on the design of the Italian ETR 401 and the British Advanced Passenger Train, it was further developed and manufactured by Fiat Ferroviaria, which was taken over by Alstom in 2000.  - TGV ("high-speed train") is France's intercity high-speed rail service, operated by SNCF, the national rail operator. It was developed in the 1970s by GEC-Alsthom and SNCF. Originally designed as turbotrains to be powered by gas turbines, the prototypes evolved into electric trains with the 1973 oil crisis. Following the inaugural service between Paris and Lyon in 1981 on the "LGV Sud-Est" ("LGV") (high-speed line), the network, centred on Paris, has expanded to connect main cities across France and in adjacent countries on combinations of high-speed and conventional lines.  - Alstom is a French multinational company operating worldwide in rail transport markets, active in the fields of passenger transportation, signalling and locomotives, with products including the AGV, TGV, Eurostar, and Pendolino high-speed trains, in addition to suburban, regional and metro trains, and Citadis trams.  - Rail transport is a means of conveyance of passengers and goods on wheeled vehicles running on rails, also known as tracks. It is also commonly referred to as train transport. In contrast to road transport, where vehicles run on a prepared flat surface, rail vehicles (rolling stock) are directionally guided by the tracks on which they run. Tracks usually consist of steel rails, installed on ties (sleepers) and ballast, on which the rolling stock, usually fitted with metal wheels, moves. Other variations are also possible, such as slab track, where the rails are fastened to a concrete foundation resting on a prepared subsurface.    What is the relationship between 'comet v' and 'train'?
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Answer:
instance of