instruction:
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.
question:
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.

answer:
b


question:
Question: Did Brown work longer as Director of player personnel for the Battlehawks or Vice President of Football Operations for the Iron? Passage:Theotis "Trey" Brown, III (born March 1, 1985) is a former American football cornerback who is currently the Director of Player Personnel for the St. Louis BattleHawks. Prior to being hired by the XFL, Brown served as the Executive Vice President of Football Operations for the Birmingham Iron of the Alliance of American Football. Prior to the AAF, Brown spent 9 years in the National Football League as a scout/executive. From 2010 to 2012, he was a scout with the New England Patriots. Then, from 2013 to 2018, he was with the Philadelphia Eagles in a variety of capacities including the Director of College Scouting from 2016-2018. As a player, he was signed by the Chicago Bears as an undrafted free agent in 2009. He played college football at UCLA. He also played for the New York Sentinels. He is the son of former NFL running back Theotis Brown.

answer:
a


question:
Question: Do both places that the Defender assisted in the evacuations of  in 1941 belong to the same country? Passage:HMS Defender was a D-class destroyer built for the Royal Navy in the early 1930s. The ship was initially assigned to the Mediterranean Fleet before she was transferred to the China Station in early 1935. She was temporarily deployed in the Red Sea during late 1935 during the Abyssinia Crisis, before returning to her assigned station where she remained until mid-1939. Defender was transferred back to the Mediterranean Fleet just before World War II began in September 1939. She briefly was assigned to West Africa for convoy escort duties in 1940 before returning to the Mediterranean. The ship participated in the Battles of Calabria, Cape Spartivento, and Cape Matapan over the next year without damage. Defender assisted in the evacuations from Greece and Crete in April–May 1941, before she began running supply missions to Tobruk, Libya in June. The ship was badly damaged by a German bomber on one of those missions and had to be scuttled by her consort on 11 July 1941.

answer:

b