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: How old was John Hamilton, 1st Marquess of Abercorn, when his younger son was elected to Parliament? Passage:The younger son of John Hamilton, 1st Marquess of Abercorn, he was evidently educated at Harrow School, where he was a lieutenant of volunteers in 1803. He matriculated at Christ Church, Oxford on 24 October 1805, but left there for Cambridge, where he was admitted as a nobleman to St John's College on 19 October 1807. In the mean time, he was elected as Member of Parliament for Dungannon at the general election in May 1807, though underage, through the patronage of his father's political ally, Thomas Knox, 1st Viscount Northland. It was intended that he should later contest County Donegal or County Tyrone, but he suffered from illness, and may not ever have taken his seat. In January 1808, he sailed for Brazil in the brig Eclipse to recover his health, but died in Madeira in June.


Output: b


Input: Consider Input: Question: What is the official IAU name for the main star that is ioninizing  the surrounding material? Passage:Sharpless 264, also known as the Lambda Orionis Ring, is a molecular cloud and H II region, which can be seen in the northern region of the Orion Molecular Cloud Complex (OMCC), in the constellation of Orion. The OMCC is one of the best-known star formation regions and the closest sector of the Milky Way to our Solar System where high-mass stars are born. The nebula is named after its main star, λ Orionis, a blue giant responsible for the ionization of the surrounding material. It is also sometimes called the Angelfish Nebula due to its resemblance as to its lighter areas (pink to peach colour) to an angelfish. In the infrared its ionized boundaries are that which appears, instead. 


Output: b


Input: Consider Input: 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-café, 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.



Output: a