Input: Read this: Several Germanic tribes celebrated the returning of the daylight. A predominant deity was during this jubilee driven around in a noisy procession on a ship on wheels. The winter would be driven out, to make sure that fertility could return in spring. A central figure was possibly the fertility goddess Nerthus. Also there are some indications that the effigy of Nerthus or Freyr was placed on a ship with wheels and accompanied by a procession of people in animal disguise and men in women's clothes. Aboard the ship would the marriage of a man and woman be consummated as a fertility ritual.
Question: Why was the winter driven out?

Output: to make sure that fertility could return in spring

Input: Read this: Regulation of hunting within the United States dates from the 19th century. Some modern hunters see themselves as conservationists and sportsmen in the mode of Theodore Roosevelt and the Boone and Crockett Club. Local hunting clubs and national organizations provide hunter education and help protect the future of the sport by buying land for future hunting use. Some groups represent a specific hunting interest, such as Ducks Unlimited, Pheasants Forever, or the Delta Waterfowl Foundation. Many hunting groups also participate in lobbying the federal government and state government.
Question: In what century was the Crockett Club founded?

Output: unanswerable

Input: Read this: From the 1950s on, many areas of the Great Plains have become productive crop-growing areas because of extensive irrigation on large landholdings. The United States is a major exporter of agricultural products. The southern portion of the Great Plains lies over the Ogallala Aquifer, a huge underground layer of water-bearing strata dating from the last ice age. Center pivot irrigation is used extensively in drier sections of the Great Plains, resulting in aquifer depletion at a rate that is greater than the ground's ability to recharge.
Question: In what decade did center pivot irrigation get invented?

Output: unanswerable

Input: Read this: Jack Brickhouse manned the Cubs radio and especially the TV booth for parts of five decades, the 34-season span from 1948 to 1981. He covered the games with a level of enthusiasm that often seemed unjustified by the team's poor performance on the field for many of those years. His trademark call "Hey Hey!" always followed a home run. That expression is spelled out in large letters vertically on both foul pole screens at Wrigley Field. "Whoo-boy!" and "Wheeee!" and "Oh, brother!" were among his other pet expressions. When he approached retirement age, he personally recommended his successor.
Question: Who manned the Cubs radio and TV booth for parts of five decades?

Output:
Jack Brickhouse