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: What is reduced by playback equipment?, Context: Due to recording mastering and manufacturing limitations, both high and low frequencies were removed from the first recorded signals by various formulae. With low frequencies, the stylus must swing a long way from side to side, requiring the groove to be wide, taking up more space and limiting the playing time of the record. At high frequencies, hiss, pops, and ticks are significant. These problems can be reduced by using equalization to an agreed standard. During recording the amplitude of low frequencies is reduced, thus reducing the groove width required, and the amplitude at high frequencies is increased. The playback equipment boosts bass and cuts treble so as to restore the tonal balance in the original signal; this also reduces the high frequency noise. Thus more music will fit on the record, and noise is reduced.
Example Output: treble

Example Input: How many losses did the Mets have after the game of September 2?, Context: In 1969 the Cubs, managed by Leo Durocher, built a substantial lead in the newly created National League Eastern Division by mid-August. Ken Holtzman pitched a no-hitter on August 19, and the division lead grew to 8 1⁄2 games over the St. Louis Cardinals and by 9 1⁄2 games over the New York Mets. After the game of September 2, the Cubs record was 84-52 with the Mets in second place at 77-55. But then a losing streak began just as a Mets winning streak was beginning. The Cubs lost the final game of a series at Cincinnati, then came home to play the resurgent Pittsburgh Pirates (who would finish in third place). After losing the first two games by scores of 9-2 and 13-4, the Cubs led going into the ninth inning. A win would be a positive springboard since the Cubs were to play a crucial series with the Mets the very next day. But Willie Stargell drilled a 2-out, 2-strike pitch from the Cubs' ace reliever, Phil Regan, onto Sheffield Avenue to tie the score in the top of the ninth. The Cubs would lose 7-5 in extra innings. Burdened by a four-game losing streak, the Cubs traveled to Shea Stadium for a short two-game set. The Mets won both games, and the Cubs left New York with a record of 84-58 just 1⁄2 game in front. Disaster followed in Philadelphia, as a 99 loss Phillies team nonetheless defeated the Cubs twice, to extend Chicago's losing streak to eight games. In a key play in the second game, on September 11, Cubs starter Dick Selma threw a surprise pickoff attempt to third baseman Ron Santo, who was nowhere near the bag or the ball. Selma's throwing error opened the gates to a Phillies rally. After that second Philly loss, the Cubs were 84-60 and the Mets had pulled ahead at 85-57. The Mets would not look back. The Cubs' eight-game losing streak finally ended the next day in St. Louis, but the Mets were in the midst of a ten-game winning streak, and the Cubs, wilting from team fatigue, generally deteriorated in all phases of the game. The Mets (who had lost a record 120 games 7 years earlier), would go on to win the World Series. The Cubs, despite a respectable 92-70 record, would be remembered for having lost a remarkable 17½ games in the standings to the Mets in the last quarter of the season.
Example Output: 55

Example Input: What facet of Wallace's theory made historians think Wallace might actually be discussing group selection rather than the impact of natural selection on individuals?, Context: Darwin was hard at work on his "big book" on Natural Selection, when on 18 June 1858 he received a parcel from Wallace, who stayed on the Maluku Islands (Ternate and Gilolo). It enclosed twenty pages describing an evolutionary mechanism, a response to Darwin's recent encouragement, with a request to send it on to Lyell if Darwin thought it worthwhile. The mechanism was similar to Darwin's own theory. Darwin wrote to Lyell that "your words have come true with a vengeance, ... forestalled" and he would "of course, at once write and offer to send [it] to any journal" that Wallace chose, adding that "all my originality, whatever it may amount to, will be smashed". Lyell and Hooker agreed that a joint publication putting together Wallace's pages with extracts from Darwin's 1844 Essay and his 1857 letter to Gray should be presented at the Linnean Society, and on 1 July 1858, the papers entitled On the Tendency of Species to form Varieties; and on the Perpetuation of Varieties and Species by Natural Means of Selection, by Wallace and Darwin respectively, were read out but drew little reaction. While Darwin considered Wallace's idea to be identical to his concept of natural selection, historians have pointed out differences. Darwin described natural selection as being analogous to the artificial selection practised by animal breeders, and emphasised competition between individuals; Wallace drew no comparison to selective breeding, and focused on ecological pressures that kept different varieties adapted to local conditions. Some historians have suggested that Wallace was actually discussing group selection rather than selection acting on individual variation.
Example Output:
focused on ecological pressures that kept different varieties adapted to local conditions