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 the building where the heads of the major railroads met in 1883 erected? Passage:In 1870, Charles F. Dowd proposed four time zones based on the meridian through Washington, DC for North American railroads. In 1872. he revised his proposal to base it on the Greenwich meridian. Sandford Fleming, a Scottish-born engineer operating in Canada, proposed worldwide Standard Time at a meeting of the Royal Canadian Institute on February 8, 1879. Cleveland Abbe advocated standard time to better coordinate international weather observations and resultant weather forecasts, which had been coordinated using local solar time. In 1879 he recommended four time zones across the contiguous United States, based upon Greenwich Mean Time. The General Time Convention (renamed the American Railway Association in 1891), an organization of US railroads charged with coordinating schedules and operating standards, became increasingly concerned that if the US government adopted a standard time scheme it would be disadvantageous to its member railroads. William F. Allen, the Convention secretary, argued that North American railroads should adopt a five-zone standard, similar to the one in use today, to avoid government action. On October 11, 1883, the heads of the major railroads met in Chicago at the Grand Pacific Hotel and agreed to adopt Allen's proposed system.

Output: b

Input: Consider Input: Question: Was the man who Kareem Abdul-Jabbar went after later on in the third quarter born after 1960? Passage:The Lakers opened the series with a 115109 victory at the Boston Garden. In Game 2, the Lakers led 113111 with 18 seconds left when Gerald Henderson stole a James Worthy pass to score a game tying layup and the Celtics eventually prevailed in overtime 124121. In Game 3, the Lakers raced to an easy 137104 victory as Magic Johnson dished out 21 assists. After the game, Larry Bird said his team played like "sissies" in an attempt to light a fire under his teammates. In Game 4, the Lakers had a five-point game lead with less than a minute to play, but made several execution errors as the Celtics tied the game and then came away with a 129125 victory in overtime. The game was also marked by Celtic forward Kevin McHale's takedown of Laker forward Kurt Rambis on a breakaway layup which triggered the physical aspect of the rivalry. Kareem Abdul-Jabbar would go after Larry Bird later on in the third quarter, and 1981 Finals MVP Cedric Maxwell further antagonized the Lakers by following a missed James Worthy free throw by crossing the lane with his hands around his own neck, symbolizing that Worthy was "choking" under pressure. In Game 5, the Celtics took a 32 series lead as Larry Bird scored 34 points. The game was known as the "Heat Game", as it was played under 97F-heat, and without any air conditioning at the infamous Boston Garden. In Game 6, the Lakers evened the series with a 119108 victory. In the game, the Lakers answered the Celtics rough tactics when Worthy shoved Cedric Maxwell into a basket support. After the game, a Laker fan threw a beer at Celtics guard M.L. Carr as he left the floor, causing him to label the series "all-out-war." In Game 7, the Celtics were led by Cedric Maxwell, who had 24 points, eight rebounds, and eight assists as they came away with a 111102 victory. In the game the Lakers rallied from a 14-point deficit to three points down with one minute remaining, when Maxwell knocked the ball away from Magic Johnson. Dennis Johnson responded by sinking two free throws to seal the Celtics' victory. Larry Bird was named MVP of the series.

Output: b

Input: Consider Input: Question: Who directed the Stephen King tele-movie where Wiles worked as an extra? Passage:In 1990, Wiles began to pursue an interest in film-making, working on the set of the film Mr. and Mrs. Bridge, filming on location in Kansas City. Not long after, the Stephen King tele-movie, Sometimes They Come Back, came to town and he worked on the crew as well as appearing in scenes as an extra. After forming some connections while working on these films, Wiles ventured to Los Angeles where he appeared in commercials before landing the lead in an after-school special. In 1994, he had a part in the Bon Jovi music video "Always". 1994 also gave him his first lead role, in the indie movie WindRunner, appearing with Margot Kidder and Russell Means. In 1995, Wiles made the first of 32 appearances in Beverly Hills, 90210 as Colin Robbins, a role which gained him some note in Hollywood. In 1999, Wiles garnered the role of Maurice 'Bosco' Boscorelli in the television drama Third Watch; he appeared in all six seasons of the show from 1999-2005.
Output: a