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: Younessi began racing motorcycles at a young age and also competed in sports car racing. In 2011 he competed in the U.S. F2000 National Championship for Pabst Racing Services and JDC Motorsports in the series' National Class. He made seven starts finishing the season Fourth (4th) in championship standing in the National Class with a best finish of 12th overall in race 2 at Road America. In 2011 he also competed in the pair of F2000 Championship Series races at the Mid-Ohio Sports Car Course. In 2012 Younessi formed his own team to compete in the Firestone Indy Lights series and announced that he would compete in the full season. However, Younessi ultimately only made two race starts, at the season opener in St. Petersburg and in June in Detroit. He finished 21st in points. He also competed in Baltimore driving a Le Mans Prototype Challenge Car in the American Le Mans Series.
Link Information: none Question: Which of the races that Younessi competed in with his own team in 2012 did he have the best finish in?

A: Answer: none
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Q: Passage: Poindexter was commissioned in the United States Navy following graduation from the Georgia Institute of Technology in 1986. After a short period of service at the Hypervelocity Wind Tunnel Facility, Naval Surface Weapons Center, White Oak, Maryland, Poindexter reported for flight training in Pensacola, Florida. He was designated a Naval Aviator in 1988 and reported to Fighter Squadron 124 (VF-124), Naval Air Station Miramar, California, for transition to the F-14 Tomcat. Following his initial training, Poindexter was assigned to Fighter Squadron 211 (VF-211), also at Miramar, and made two deployments to the Persian Gulf during Operations Desert Storm and Southern Watch. During his second deployment in 1993, he was selected to attend the Naval Postgraduate School/U.S. Naval Test Pilot School Cooperative Program. Following graduation in December 1995, Poindexter was assigned as a test pilot and Project Officer at VX-23, the Naval Strike Aircraft Test Squadron (NSATS) at NAS Patuxent River, Maryland. While at NSATS, Poindexter was assigned as the lead test pilot for the F-14 Digital Flight Control System where he logged the first carrier landing and catapult launch of an F-14 with the upgraded flight controls. He also flew numerous high angle of attack/departure tests, weapons separation tests and carrier suitability trials. Following his tour at Patuxent River, Poindexter reported to Fighter Squadron 32 (VF-32) at NAS Oceana, Virginia, where he was serving as a department head when he was selected for astronaut training.
Link Information: The F-14 first flew on 21 December 1970 Question: What year did the aircraft Poindexter was commissioned to in California first fly?

A: Answer: 1970
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Q: Passage: John Robert Isner (born April 26, 1985) is an American professional tennis player who has been ranked as high as No. 8 in men's singles by the Association of Tennis Professionals (ATP). Considered one of the best servers ever to play on the ATP World Tour, Isner achieved his career-high singles ranking in July 2018 by virtue of his maiden Masters 1000 crown at the 2018 Miami Open and a semifinals appearance at the 2018 Wimbledon Championships. He has also twice reached the quarterfinals at the US Open in 2011 and 2018, the latter of which helped qualify him for his first ATP Finals appearance later that year. He currently has the second-most aces in the history of the ATP World Tour, having served 11,969 aces. At the 2010 Wimbledon Championships, he played the longest professional tennis match in history, defeating Nicolas Mahut in a total of 11 hours and 5 minutes, played over the course of three days.
Link Information: Mahut had excellent junior results, winning the Orange Bowl in 1999 and the Wimbledon Boys' Singles in 2000, turning professional the same year Question: How old was Mahut when he started playing professional tennis?

A:
Answer: 18
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