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: As part of the RAAF's reorganisation following the outbreak of World War II in September 1939, No. 2 Group was formed in Sydney on 20 November; Charlesworth was appointed its Senior Air Staff Officer (SASO). He continued to serve in this position when the group was re-formed as Central Area in March 1940. Posted to Western Australia to take command of RAAF Station Pearce in August, he was promoted to temporary group captain on 1 September 1940. He became Senior Administration Officer at the newly established Western Area, Perth, in January the following year. In September 1942, Charlesworth took over No. 2 Bombing and Gunnery School in Sale, Victoria. He handed over to Group Captain Charles "Moth" Eaton in August 1943, before briefly taking charge of RAAF Headquarters Forward Echelon in Brisbane. Charlesworth was appointed Air Officer Commanding (AOC) Eastern Area, headquartered at Bradfield Park, Sydney, in December 1943. Eastern Area was responsible for maritime patrol and anti-submarine warfare off the coast of New South Wales and southern Queensland. Japanese submarine activity had decreased in the months prior to Charlesworth taking command, and he was concerned that Allied ships were becoming complacent. He observed "a general slackening off in procedure; ships are seldom where they should be, and a minority of merchant ships identify themselves to aircraft". The RAAF's patrols had also settled into a predictable pattern that would have been easy for an observant submarine captain to avoid.
 Link Information: none Question: How many groups were stationed at RAAF Station Pearce in August 1940 when Charlesworth was in command?
[A]: Answer: none


[Q]: Passage: In 1995, Tony was selected to become a member of the NFL officiating staff as a back judge (the title was changed to field judge in 1998) before being promoted to referee at the beginning of the 1998 NFL season. In his three seasons as a back judge, he worked two playoff games including the 1997 NFC Championship Game. Tony also officiated in NFL Europe working the World Bowl in both 1995 (Back Judge) and 1998 (Referee). In 1998, he became a referee after Dale Hamer returned to the head linesman (now down judge) position and Gary Lane returned to the side judge position. Corrente worked the NFC Championship Game in 2001 between the Minnesota Vikings and New York Giants at Giants Stadium in East Rutherford, New Jersey and the 2010 AFC Championship Game between the New York Jets and the Indianapolis Colts at Lucas Oil Stadium in Indianapolis. Since joining the NFL in 1995, Corrente has been involved in 13 post-season assignments including 3 AFC/NFC Championships and as the alternate Referee in Super Bowls XL and 50 and as Referee in Super Bowl XLI between the Chicago Bears and the Indianapolis Colts.
 Link Information: none Question: How many total games did Corrente officate in NFL Europe?
[A]: Answer: none


[Q]: Passage: John Backus was born and raised in Portland, Oregon, where he studied at Reed College, receiving a BA in 1932. He went on to graduate studies at the University of California, Berkeley, where he did research in nuclear physics at the Radiation Laboratory under Ernest Lawrence. He received an MA in 1936, and a PhD in 1940. In 1945 he was appointed Professor of Physics at the University of Southern California, a post he retained until his retirement in 1980. During the early part of his career, his research focussed on gaseous discharges in strong magnetic fields. He was also a musician, trained as a performer on piano, bassoon, clarinet and other woodwinds and received the degree of MMus in conducting from the University of Southern California in 1959. In his later career he turned increasingly to the study of musical acoustics, particularly those of wind instruments and organ pipes. In 1969 he published The Acoustical Foundations of Music, a book which became a standard text for introductory courses in musical acoustics. A second edition appeared in 1977. He received the Silver Medal of the Acoustical Society of America in 1986. Backus died in Los Angeles in 1988.
 Link Information: In 1928, he was hired as an associate professor of physics at the University of California, Berkeley Question: How many years had Ernest Lawrence worked at UCLA before Backus attended?
[A]:
Answer: 5