In this task, you're given a question, along with a context passage. The passage will not have a direct answer to the question, but can include some information and a clue for the answer. Assuming you can only obtain information about one entity in the passage, your job is to determine whether information from the passage can be used to answer the question. Indicate your choice as 'a' for Yes or 'b' for No.

Input: Consider Input: Question: When was Kauffman Stadium built? Passage:At Kauffman Stadium, Dennis Leonard pitched a four-hit complete game to give the Royals a 21 series lead. After a one-out walk and single, Freddie Patek's RBI single off of Mike Torrez in the second put the Royas up 10. Next inning, Al Cowens's groundout with runners on second and third and no outs made it 20 Royals. The Yankees got on the board in the fifth when Graig Nettles singled with two outs and scored on Lou Pinella's double, but the Royals got that run back in the bottom of the inning when Hal McRae hit a leadoff double, moved to third on a groundout, and scored on Cowens's groundout. Next inning, Torrez allowed a leadoff walk and single, then got two outs before being relieved by Sparky Lyle, who allowed a two-run double to Amos Otis. Next inning, George Brett hit a leadoff single and scored on John Mayberry's RBI double. The Yankees got a run in the ninth when Roy White doubled with one out and scored on first baseman Mayberry's error on Reggie Jackson's ground ball before Chris Chambliss grounded out to end the game.

Output: b

Input: Consider Input: Question: Is the club Charles played against in 1883 still active? Passage:Educated at Wellington College and later attending Trinity Hall, Cambridge, Willock made a single first-class appearance for Cambridge University against the Marylebone Cricket Club at Fenner's in 1883. He was dismissed in Cambridge University's first-innings of 100 for a duck by Wilfred Flowers, while in the Marylebone Cricket Club's first-innings of 159 he took the wickets of Billy Gunn and Percy de Paravicini to finish with figures of 2/18 from 28 overs. In the University's second-innings of 65, he was once again dismissed for a duck by Flowers, while in the Marylebone Cricket Club's successful chase, he dismissed Gunn for a second time. Later that season he made a single first-class appearance for Sussex against Hamshire at Day's Antelope Ground. In Hampshire's first-innings of 110, he bowled ten wicketless overs which conceded 5 runs, while he ended Sussex's first-innings of 94 unbeaten on 8. In Hampshire's second-innings of 180, he bowled five wicketless overs which conceded 9 runs. In Sussex's second-innings of 165, he was dismissed for 6 runs by William Dible, with Hampshire winning the match by 31 runs.

Output: b

Input: Consider Input: Question: What were the two teams that were playing against each other during the first Underwater Hockey World Championship? Passage:Underwater hockey (UWH), also known as Octopush (mainly in the United Kingdom) is a globally played limited-contact sport in which two teams compete to manoeuvre a puck across the bottom of a swimming pool into the opposing team's goal by propelling it with a hockey stick (pusher). It originated in England on November 18 1954 when Alan Blake, a founder of the newly formed Southsea Sub-Aqua Club, invented the game he called Octopush as a means of keeping the club's members interested and active over the cold winter months when open-water diving lost its appeal. Underwater hockey is now played worldwide, with the Confederation Mondiale des Activites Subaquatiques, abbreviated CMAS, as the world governing body. The first Underwater Hockey World Championship was held in Canada in 1980 after a false start in 1979 brought about by international politics and apartheid.
Output: a