In this task, you are given a question and a context passage. You have to answer the question based on the given passage.

Example Input: Who was chair of the IPCC in 1990?, Context: Korean economist Hoesung Lee is the chair of the IPCC since October 8, 2015, following the election of the new IPCC Bureau. Before this election, the IPCC was led by his vice-Chair Ismail El Gizouli, who was designated acting Chair after the resignation of Rajendra K. Pachauri in February 2015. The previous chairs were Rajendra K. Pachauri, elected in May 2002; Robert Watson in 1997; and Bert Bolin in 1988. The chair is assisted by an elected bureau including vice-chairs, working group co-chairs, and a secretariat.
Example Output: Bert Bolin

Example Input: How was access gained to Alaska, Context: The specifics of Paleo-Indian migration to and throughout the Americas, including the exact dates and routes traveled, provide the subject of ongoing research and discussion. According to archaeological and genetic evidence, North and South America were the last continents in the world with human habitation. During the Wisconsin glaciation, 50–17,000 years ago, falling sea levels allowed people to move across the land bridge of Beringia that joined Siberia to north west North America (Alaska). Alaska was a glacial refugia because it had low snowfall, allowing a small population to exist. The Laurentide Ice Sheet covered most of North America, blocking nomadic inhabitants and confining them to Alaska (East Beringia) for thousands of years.
Example Output: the land bridge

Example Input: Which of the following is not the last name of someone who writes for a living: Lowe, Aguilar or Corts?, Context: In 1943, Barcelona faced rivals Real Madrid in the semi-finals of Copa del Generalísimo (now the Copa del Rey). The first match at Les Corts was won by Barcelona 3–0. Real Madrid comfortably won the second leg, beating Barcelona 11–1. According to football writer Sid Lowe, "There have been relatively few mentions of the game [since] and it is not a result that has been particularly celebrated in Madrid. Indeed, the 11–1 occupies a far more prominent place in Barcelona's history." It has been alleged by local journalist Paco Aguilar that Barcelona's players were threatened by police in the changing room, though nothing was ever proven.
Example Output:
Corts