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: How many countries border the body of water on the coast of which Hommaire coordinated the construction of a lighthouse? Passage:After attending school in Altkirch and Dijon, Hommaire graduated as an engineer at the Ecole des Mines in Saint-Etienne in 1833. There he met Adele Heriot whom he married in 1834. In October 1835, he went Turkey where he coordinated the construction of a suspension bridge in Constantinople and a lighthouse on the Black Sea coast. In 1838, he arrived in southern Russia where he performed ethnographical research and geographical surveys. After he discovered coal resources along the Dnieper River, Czar Nicholas I awarded him the St Vladimir Cross. In 1842, while working on mining and road-building projects in Moldavia, he fell ill and returned to France. The following year he became a member of the Societe de Geographie and the Societe geologique and published a number of scientific papers. In 1844 the Societe de Geographie awarded him their Gold Medal .

answer:
b

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Question: Where is the entity located that the two Phillies pitchers were inducted into? Passage:Of those Phillies, 97 have had surnames beginning with the letter R. Two of those players have been inducted into the Baseball Hall of Fame: pitcher Eppa Rixey, who was a Phillie for six seasons in two different stints (19121917, 1919); and Robin Roberts, who won 20 games during the 1950 season as the ace pitcher of the Whiz Kids. The Hall of Fame lists the Phillies as Roberts' primary team; during his career, the right-hander won 234 games and lost 199, the latter one of his three franchise records. During his 14 seasons with the team, he pitched 3,739 innings and completed 272 games, both records; he also held the major league record for most career home runs allowed until it was broken in 2010. Roberts was also elected to the Philadelphia Baseball Wall of Fame as the Phillies' first inductee in 1978.

answer:
b

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Question: Which was the most expensive of the items Stanley Marcus put in a brandy snifter to make a present for a customer's wife? Passage:As a retailer, Marcus believed strongly in making his store into a place where everything a customer needed could be found and, if necessary, brought to the customer's front door. He was said to have helped one customer discover the shoe size of Queen Elizabeth II so as to give the gift of stockings and a pair of shoes, and he ordered that the store stock such items as a set of Steuben plates with the Mexican national crest, "because sooner or later somebody will be going to call on the President of Mexico and need a proper gift." He personally delivered a fur coat to a St. Louis, Missouri, customer who could not make the trip to Dallas. Another story often recounted is that of a shopper who, in searching for a present for his wife, said that he was not sure what to buy, but that he would know it when he saw it. In response, Marcus inquired about the woman's clothing sizes and asked the customer to wait briefly. Taking an oversized brandy snifter from a display, Marcus gathered cashmere sweaters of various colors, arranged them in imitation of a pousse-cafe, topped with a white angora sweater to simulate whipped cream, and in place of a cherry, garnished the concoction with a 10-karat ruby ring, at a total cost of $25,350, which the customer gladly paid. When one customer decided his Christmas purchases were not sufficiently impressive, Marcus helped to arrange a full duplication of the store's display window, complete with mannequins and lighting, inside the man's home.

answer:
a