Information:  - William `` Will '' Frischkorn ( born June 10 , 1981 in Charleston , West Virginia ) is a former professional road bicycle racer , who finished his career with UCI ProTour team Garmin - Slipstream . He retired from professional cycling in September 2009 to take up a non-racing role with the team .  - The UCI ProTour was a series of road bicycle races in Europe, Australia and Canada organised by the UCI (International Cycling Union). Created by Hein Verbruggen, former president of the UCI, it comprises a number of 'ProTour' cycling teams, each of whom are required to compete in every round of the series. It was initially the basis of a season long competition for rankings points, created for 2005 to replace the UCI Road World Cup series, which ended at the end of the 2004 season (although the World Cup did not include any stage races). The ProTour was the subject of continuing disputes involving the UCI, cycling teams, and the organizers of the world's most prominent bicycle races (most notably, the Grand Tours), and in 2009 and 2010 the ranking element of the ProTour was superseded by the UCI World Ranking. For 2011, the ProTour and World Ranking were fully merged into the UCI World Tour. ProTour status for teams  relabelled UCI ProTeams  will continue as the highest level of registration, and will carry the right and obligation to participate in all World Tour races.  - The UCI Road World Cup was a season-long road bicycle racing competition comprising ten one-day events. The competition was inaugurated in 1989, and replaced the Super Prestige Pernod International. In the first three years, the competition was sponsored by Perrier. The competition determined a winning individual, and a winning team  - 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 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.    What object entity has the relation of 'sport' with the subject 'will frischkorn'?   Choices: - cycling  - road bicycle racing  - sport  - track cycling
Answer:
track cycling