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: In 1993, Feyenoord secured another Dutch Championship by beating Groningen 5–0 in the last league match of the season. The match was played at the Oosterpark Stadion in Groningen, so 40.000 Feyenoord fans watched the game on giant screens in De Kuip. The title was followed by another two Dutch Cups in 1994 (beating NEC 2–1) and 1995 (beating Volendam 2–1). During the 1994–95 UEFA Cup Winners' Cup, Feyenoord reached the quarter finals after beating Werder Bremen in the second round. They eventually lost to Real Zaragoza. In the quarter-finals in the 1995 KNVB Cup, Feyenoord visited Ajax, which would win the 1994–95 UEFA Champions League later that season. Ajax was leading 1–0 when Ruud Heus equalised with a penalty just before full time. In extra time, Feyenoord became the only team to defeat Ajax the same season they won the Eredivisie and the Champions League unbeaten. The goal scored by Mike Obiku was the decider as the new golden goal rule became in use. During the 1995–96 UEFA Cup Winners' Cup, Everton and Borussia Mönchengladbach were beaten. A total of 14,000 Feyenoord fans travelled to Germany to support the team against Mönchengladbach. Feyenoord were eliminated in the semi-finals by a Carsten Jancker-inspired Rapid Wien.
 Link Information: none Question: How many goals did Ruud Heus score in the 1994-95 season?

A: Answer: none
****
Q: Passage: Olvir Hnufa or Ölvir hnúfa was a Norwegian commander in a clan and poet of the late ninth and early tenth centuries, known from, among other sources, Egil's Saga, Skaldatal and the Prose Edda. Olvir was the son of the viking Berle-Kari and brother-in-law of Kveldulf Bjalfason, who married Olvir's sister Salbjorg Karadottir; he was thus uncle to Skallagrim and Thorolf Kveldulfsson and great uncle to the famous poet Egil Skallagrimsson. Olvir also had a brother named Eyvind Lambi. Olvir was a prominent member of the court of King Harald Fairhair, who united Norway under his rule in the late ninth or early tenth century. Among other famous poets, he served as one of King Harald's court poets. He also served as a warrior in Harald's retinue, and fought at the pivotal Battle of Hafrsfjord on the king's flagship. He is best known for his involvement in the conflict between Harald and Olvir's kinsman Thorolf Kveldulfsson, which ended with the latter's death. Only a few fragments of Olvir's poetry survive.
 Link Information: none Question: Was Olivir's sister still alive when the Battle of Hafrsfjord took place?

A: Answer: none
****
Q: Passage: Described by will.i.am as "party album[s]", The Black Eyed Peas released the electronic dance-influenced The E.N.D. and The Beginning in 2009 and 2010, following the 2008 election of Barack Obama as President of the United States. The band welcomed Obama's election; will.i.am had recorded and released "Yes We Can", a single that promoted Obama's election campaign during the Democratic Party primaries, and often claims the song had helped Obama get elected. The band's most commercially successful single during this period, "I Gotta Feeling", was inspired by the band's perception of being "in the center of a ginormous change in America". The track became the best-selling digital song of all time until it was surpassed by Pharrell Williams' "Happy" in 2014. By the end of 2010, The E.N.D. had sold over eleven million copies worldwide, while The Beginning had sold over two million copies worldwide. The band had intended to return to the studio to create their seventh studio album soon after the release of The Beginning, though frequent delays and Taboo's diagnosis with testicular cancer in 2014, along with his subsequent treatment and recovery, led to the project being put on hiatus.
 Link Information: The song was released on May 21, 2009 Question: What year was the single that once held the title of best-selling digital song of all time release?

A:
Answer: 2009
****