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: Ridley Scott's idea of an NFL concussion film was inspired by Dr. Bennett Omalu's study about former NFL stars Junior Seau and Dave Duerson, both of whom committed suicide after suffering from chronic traumatic encephalopathy (CTE). Scott was set to direct after his film , while he and Facio were looking for an A-list writer. In November and December 2013, two more NFL concussion films were in development, first Game Time Decision with writer/director and former NFL training camp attendee wide receiver Matthew A. Cherry and actor Isaiah Washington, and another film League of Denial with producers Walter Parkes and Laurie MacDonald. Landesman had based his script on the 2009 GQ article Game Brain by Jeanne Marie Laskas. Smith and Marsan previously appeared together in the 2008 superhero film Hancock. It received $14.4 million in film tax credits from Pennsylvania.
 Link Information: Tiaina Baul "Junior" Seau Jr. (; ; January 19, 1969 – May 2, 2012) Question: Which of the two players who committed suicide after suffering from CTE was younger?

A: Answer: Junior Seau
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Q: Passage: DeFilippo became quarterbacks coach at Fordham in 2000 upon graduating from James Madison. The following year, DeFilippo enrolled at the University of Notre Dame to be a graduate assistant for the Notre Dame Fighting Irish. In the 2001 season, DeFilippo helped coach wide receivers and tight ends on Bob Davie's staff, then in 2002 worked with quarterbacks under Tyrone Willingham. From 2003 to 2004, DeFilippo was again quarterbacks coach at a Division I-AA program in New York City, Columbia, under Bob Shoop. He then moved up to the NFL in 2005 as offensive quality control coach for the New York Giants under Tom Coughlin and held that position until 2006. In 2007, DeFilippo joined Lane Kiffin's staff on the Oakland Raiders as quarterbacks coach and remained on staff in 2008 when Tom Cable replaced Kiffin during the season. DeFilippo became quarterbacks coach for the New York Jets under Rex Ryan in 2009. The Jets that year finished 9-7 and in the playoffs, defeated the Cincinnati Bengals and San Diego Chargers to make their first trip to the AFC Championship Game in 11 years, before losing to their former division rival Indianapolis Colts 17-30. DeFilippo also coached rookie quarterback Mark Sanchez, whom in 2009, became only the second rookie quarterback in NFL history to win multiple playoff games.
 Link Information: Rex Ashley Ryan (born December 13, 1962) is a former American football coach and current ESPN analyst. Ryan was formerly the head coach of the New York Jets a Question: Who was the last head coach to lead the Jets to the AFC Championship Game prior to John DeFilippo joining the team as their quarterbacks coach?

A: Answer: Rex Ryan

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Q: Passage: In Roman times, it was a village in the province of Moesia, first mentioned in 169. After the decline of the Roman Empire, the town turned out to be located at the northern border of the Byzantine Empire. In 1059, it was named Nicopolis, Greek for "City of Victory". During most of the Middle Ages, it was part of the Bulgarian Empire from its foundation in 681. After the fall of Tarnovo in 1393, the last Bulgarian Tsar Ivan Shishman defended what remained of the Empire from the fortress of Nikopol, where he was captured after the town was conquered by the Ottomans in 1395. Nikopol is therefore sometimes considered the capital of Bulgaria during these two years. It was the site of the Battle of Nicopolis, the last large-scale crusade of the Middle Ages, in 1396. At the fortress of Nicopolis, the united armies of Christian Europe headed by Hungarian king Sigismund and various French knights were defeated by the Ottomans under Bayezid I and his Serbian vassal Stefan Lazarević.
 Link Information: 

Ivan Shishman () ruled as emperor (tsar) of Bulgaria in Tarnovo from 1371 to 3 June 1395. Question: How long did the last Bulgarian Tsar rule the Empire?

A:
Answer: 24
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