In this task, you're given a passage, further information available on a particular linked term from the statement, and a question. Your job is to generate the answer to the question by using the information provided. If there is no clear answer obtainable, output 'none'.

[Q]: Passage: The eastern section of US422 begins at a partial cloverleaf interchange with US322 and the eastern terminus of PA39 east of the borough of Hummelstown in Derry Township, Dauphin County, heading northeast as a four-lane divided highway. The road passes commercial development along with some farm fields and residential development as it heads into the community of Hershey, where it becomes West Chocolate Avenue. The route heads into a mix of homes and businesses and turns east-northeast, where it narrows to a two-lane undivided road. At this point, West Chocolate Avenue becomes lined with street lamps that are shaped like Hershey's Kisses. US422 continues along West Chocolate Avenue and comes to an intersection with PA743 at Cocoa Avenue in the center of Hershey. At this point, the route becomes East Chocolate Avenue, a three-lane divided with two eastbound lanes and one westbound lane that passes southeast of the Hershey Chocolate factory. The road becomes undivided, still with two eastbound lanes and one westbound lane, and passes near a few residences and businesses as it heads between two golf courses, narrowing to two lanes. US422 runs past more residential and commercial development, leaving Hershey and heading through the community of Palmdale.
Link Information: The Hershey Kisses were first introduced in 1907. Question: When were Hershey's Kisses first manufactured?
[A]: Answer: 1907

[Q]: Passage: The Lookout Mountain Incline Railway is a inclined plane funicular railway leading to the top of Lookout Mountain from the historic St. Elmo neighborhood of Chattanooga, Tennessee. Passengers are transported from St. Elmo's Station at the base, to Point Park at the mountain summit, which overlooks the city and the Tennessee River. It is just a short drive to three of Chattanooga's main tourist attractions, Ruby Falls, Cavern Castle, and Rock City. The railway is approximately in length (single-track except for a short two-track passing loop at the midway point, allowing operation of two cars at one time). It has a maximum grade of 72.7%, making it one of the world's steepest passenger railways. It obtained Historic Mechanical Engineering Landmark status in 1991. The cable system for the cars was made by the Otis Elevator Company.
Link Information: The company pioneered the development of the "safety elevator", invented by Otis in 1852, which used a special mechanism to lock the elevator car in place should the hoisting ropes fail.
Question: In what year did the Otis Elevator Company first use the cable system for their railway cars?
[A]: Answer: 1852

[Q]: Passage: Roger Federer won the Australian Open, beating Briton Andy Murray, whom he also beat in the final of the 2008 US Open. Federer played in eighteen tournaments in 2010, and won five. He made the semifinals of his opening tournament at the Qatar Open in Doha, losing to Nikolay Davydenko, and at the Estoril Open, which he had won in 2008, losing to defending and eventual champion Albert Montanes. Federer was runner-up in the Mutua Madrilena Madrid Open to Rafael Nadal. At the French Open, he faced his opponent in the previous year's final, Robin Soderling at the quarterfinals stage and lost. As defending champion at Wimbledon, he was defeated in the quarterfinals by Tomas Berdych in four sets, thus ending his streak of seven consecutive Wimbledon finals also falling to world no. 3, his lowest ranking since 2003. During the summer hard-court season, Federer hired Paul Annacone to be his coach and revive his form. At the 2010 US Open, Federer advanced to his seventh straight semifinal appearance, but lost to Novak Djokovic in five sets, despite holding two match points in the final set. Federer's ranking slipped from no. 2 to no. 3 after the tournament, but he finished the year strong with victories in Stockholm, Basel, and the ATP Tour Finals to pass Djokovic in the rankings and finish the year at no. 2. By the end of 2010 Roger Federer became widely considered as the greatest male tennis player of all time.
Link Information: none Question: How many sets was the finals match between Federer and Nadal during the 2010 season?
[A]:
Answer: none