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.

Ex Input:
Question: Does the town where Abernethy was was born have a larger current population than the nearby port town his family moved to when he was a child? Passage:Thomas Abernethy was born in 1803 at Longside in northeast Scotland. While he was a child, his family moved to Peterhead, a nearby port. His parents were James Abernethy, a stonemason, and Isabella Robertson. Thomas had an elder sister, Ann, who was born in 1801, and twin brothers, James and William, who were both born in 1816. Thomas went to sea at the age of ten and when he was about twelve he was apprenticed as a merchant seaman on the sloop Friends. He travelled to the West Indies and twice to Newfoundland. In 1819, he became a greenhand on the maiden voyage of the Peterhead whaling ship Hannibal, which hunted bowhead whales around the eastern coast of Greenland, and in its third season sailed into the Davis Strait on the western coast, where ice conditions can be much heavier. In 1829, Abernethy married Barbara Fiddes, the daughter of a ship's carpenter, and they lived at Deptford, southeast London, near the Royal Naval docks. They had no children.


Ex Output:
b


Ex Input:
Question: Who created the character with whom the goddess Bast made her first appearance in Fantastic Four #52? Passage:Characters based on ancient Egyptian deities were first mentioned in Captain America Comics #20 (November 1942), published by Marvel Comics' predecessor Timely Comics, in which Captain America and Bucky investigate the murder of Colonel Fitzpatrick, who was studying the Book of Thoth while stationed in Egypt. The Heliopolitans first full Golden Age appearance was in the story "The Terror That Creeps" by Stan Lee and Werner Roth, published in Marvel Tales #96 (June 1950), and involves a man that fails to convince the public that the Great Sphinx of Giza is slowly moving to the edge of the desert, where it will be empowered by Set and destroy mankind. The goddess Bast would later make her first appearance (as a totem) with the Black Panther in Fantastic Four #52 (July 1966). Many of the other deities, including Horus, Isis and Osiris, were introduced in Thor #239 (September 1975). Khonshu, who became associated with Moon Knight, first appeared in Moon Knight #1 (November 1980). Joseph Muszynski argued in his book Everything I Needed to Know About Life I Learned from Marvel Comics that the introduction of Egyptian deities "excited our tendency to enjoy variety" as the pantheon contained multiple gods and personalities as opposed to the Judeo-Christian religions. Ed Strauss contended that Marvel was able to dive into ancient Egyptian religion because it "had long been retired into the realm of mythology" unlike Christianity.


Ex Output:
b


Ex 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.


Ex Output:

b