In this task, you're given a question, along with a context passage which has extra information available on certain terms mentioned in it. Your job is to determine which sentence(s) from the passage can be used to search for further information needed to answer the question.
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Question: Question: Who was the head coach for the Edmonton Oilers when the team joined the NHL? Passage:Matheson was born on April 7, 1949 in Winnipeg, Manitoba to Jack and Peggy Matheson. Matheson had an intention to follow the footsteps of his father, Jack, a long-time sports editor for the Winnipeg Tribune. He graduated from the University of Manitoba with a degree in political science, and while in school, worked a part-time night shift with the Tribune. He got his first job upon completing school with the Regina Leader-Post, but moved west to Edmonton, Alberta six months later. Upon moving to Edmonton, Matheson got a job with the Edmonton Journal in 1970. He initially covered local curling and university sports, but quickly switched to hockey, when, in 1973, Edmonton was granted a WHA franchise, the Edmonton Oilers. Matheson became the beat writer for the Oilers then, and continued when the Oilers joined the NHL in 1979. He spent countless hours covering the team and its five Stanley Cups, and completed more than 300 stories per winter. In addition to writing, Matheson also was a part of the CFRN radio broadcasting team that covered the Oilers. After 24 years, he completed his tenure as beat writer for the Oilers in 1997. He now continues to write for the Edmonton Journal covering the NHL and the Oilers.


Answer: Matheson became the beat writer for the Oilers then, and continued when the Oilers joined the NHL in 1979


Question: Question: Who is the leader of the largest party in Wallonia? Passage:Following the Belgian general election held on 13 June 2010, a process of cabinet formation started in Belgium. The election produced a very fragmented political landscape, with 11 parties elected to the Chamber of Representatives, none of which won more than 20% of the seats. The Flemish-Nationalist New Flemish Alliance (N-VA), the largest party in Flanders and the country as a whole, controlled 27 of 150 seats in the lower chamber. The Francophone Socialist Party (PS), the largest in Wallonia, controlled 26 seats. Cabinet negotiations continued for a long time. On 1 June 2011, Belgium matched the record for time taken to form a new democratic government after an election, at 353 days, held until then by Cambodia in 2003–2004. On 11 October 2011, the final agreement for institutional reform was presented to the media. A government coalition was named on 5 December 2011 and sworn in after a total of 541 days of negotiations and formation on 6 December 2011, and 589 days without an elected government with Elio Di Rupo named Prime Minister of the Di Rupo I Government.


Answer: The Francophone Socialist Party (PS), the largest in Wallonia, controlled 26 seats


Question: Question: Which of Mike Hoover's films had the largest box office success?  Passage:Mike Hoover is an American mountaineer, rock climber and cinematographer. He first became known for an Academy Award-nominated documentary short, Solo, in which he climbed El Capitan solo. His first major involvement in commercial film was with The Eiger Sanction (1975), in which he taught Clint Eastwood how to climb in the Yosemite valley before the film was shot in Grindelwald, Switzerland in 1974. Hoover has since been a cinematographer for the documentaries To the Ends of the Earth (1983), To the Limit (1989), The Endless Summer 2 (1994) and Zion Canyon: Treasure of the Gods. In the late 1980s, he made 18 trips to Afghanistan to shoot war footage that was later featured in a program named The Battle for Afghanistan (1987). Hoover has led various film teams all over the world, particularly in physically and politically difficult locations, such as Everest, K2, the precarious rock faces of the Eiger and the Venezuelan jungle.


Answer:
He first became known for an Academy Award-nominated documentary short, Solo, in which he climbed El Capitan solo