TASK DEFINITION: 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'.
PROBLEM: Passage: After a spell at Colchester United where he scored once against A.F.C. Bournemouth, he joined Darlington at the start of the 2005–06 season, where he scored 10 goals in 21 league appearances. He moved to Cardiff City in January 2006, where he made 11 appearances including seven as substitute. He was released at the end of the season and signed by Gillingham. He scored his first goal for Gillingham away to Blackpool on 26 August 2006 in a game which ended 1–1. He struggled to hold down a place in the team during his first season at the club and was sent on loan to Bradford City the next season. He made his debut on 10 August 2007 and scored an equaliser to secure a 1–1 draw against Macclesfield Town. He played 18 league games, scoring six league goals for Bradford but his loan was not extended when it expired at the end of 2007 partly because of financial reasons. He returned to Gillingham but was immediately placed on the transfer list, and on 29 January 2008 he moved on a free transfer for a second spell at Darlington. Injury delayed his debut back at Darlington, which came on 23 February 2008 against Bury when he scored a sixth-minute penalty in a 2–1 victory. He played eight league games for Darlington, scoring three goals, and was a substitute in both legs of the play-off semi-finals against Rochdale, but after Darlington's defeat on penalties to Rochdale, he was released by manager Dave Penney. On 11 November 2010, Ndumbu-Nsungu was reported as training with Conference National side Tamworth with a view to signing. He trained with Beaconsfield SYCOB in December 2010, though the signing failed to materialise due to problems with international clearance.
 Link Information: In 2002 Penney retired to pursue a career in management and he remained at Doncaste Question: How many years was Penney a manager?

SOLUTION: Answer: 15

PROBLEM: Passage: On 15 February 2016, McCartney announced two initial festival dates in Europe for the upcoming summer. These two headlining performances at Pinkpop Festival in Landgraaf, Netherlands and Rock Werchter in Werchter, Belgium were revealed before the initial revelation of the "One on One" tour. These tours would feature mostly similar elements of the "One on One" performances yet with a condensed set list to allot for festival curfew limits and less stage elements given restrictions. In the wake of the passing of notable Beatles and McCartney producer George Martin, McCartney announced the initial "One on One" dates for North America and Europe. In North America, McCartney's visit to Fresno, California would mark his first performance in the city, and his performances in North Little Rock and Sioux Falls would be his first performances in the states of Arkansas and South Dakota respectively. Elsewhere in North America, McCartney would perform in Portland after an eleven-year absence following his 2005 'US' tour. The two shows in Vancouver would follow his previous performance in the city at the BC Place stadium in 2012, yet this tour would feature two shows in the neighboring Rogers Arena after the pyrotechnics during his concert at BC Place accidentally damaged the stadium's new roof. McCartney's Seattle show would mark his shortest absence from any North American city on the tour announced currently, as he performed at the city's Safeco Field during the inaugural year of the 'Out There' tour. McCartney announced a performance on 16 March in Minneapolis at the Target Center. This show would take place on 4 May 2016, less than two years after McCartney's last performance in the city at the adjacent baseball stadium sharing a corporate sponsor with the arena, Target Field. Due to high demand of tickets a second show in Minneapolis was announced the next day and would take place on 5 May.
 Link Information: BC Place was built as part of the preparations for the 1986 World's Fair, Expo 86. Upon its completion in 1983 Question: Which Vancouver stadium that McCartney played at is newer?

SOLUTION: Answer: Rogers Arena

PROBLEM: Passage: In March 1996, a group of scientists at Lawrence Livermore National Laboratory reported that they had serendipitously produced the first identifiably metallic hydrogen for about a microsecond at temperatures of thousands of kelvins, pressures of over , and densities of approximately . The team did not expect to produce metallic hydrogen, as it was not using solid hydrogen, thought to be necessary, and was working at temperatures above those specified by metallization theory. Previous studies in which solid hydrogen was compressed inside diamond anvils to pressures of up to , did not confirm detectable metallization. The team had sought simply to measure the less extreme electrical conductivity changes they expected. The researchers used a 1960s-era light-gas gun, originally employed in guided missile studies, to shoot an impactor plate into a sealed container containing a half-millimeter thick sample of liquid hydrogen. The liquid hydrogen was in contact with wires leading to a device measuring electrical resistance. The scientists found that, as pressure rose to , the electronic energy band gap, a measure of electrical resistance, fell to almost zero. The band-gap of hydrogen in its uncompressed state is about , making it an insulator but, as the pressure increases significantly, the band-gap gradually fell to . Because the thermal energy of the fluid (the temperature became about due to compression of the sample) was above , the hydrogen might be considered metallic.
 Link Information: In March 1996, a group of scientists at Lawrence Livermore National Laboratory reported that they had serendipitously produced the first identifiably metallic hydrogen Question: How many years were there between the opening of Lawrence Livermore National Laboratory and the creation of metallic hydrogen by a group of scientists at the lab?

SOLUTION:
Answer: 44