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.

Example Input: Question: How old was the military engineer who scouted around Leith during the siege? Passage:The English King Henry VIII, angered by the Scots reneging on the initial agreement, made war on Scotland in 1544–1549, a period which the writer Sir Walter Scott later christened the "Rough Wooing". In May 1544 an English army landed at Granton and captured Leith to land heavy artillery for an assault on Edinburgh Castle, but withdrew after burning the town and the Palace of Holyrood over three days. Three years later, following another English invasion and victory at Pinkie Cleugh in 1547, the English attempted to establish a "pale" within Scotland. Leith was of prime strategic importance because of its vital role as Edinburgh's port, handling its foreign trade and essential supplies. The English arrived in Leith on 11 September 1547 and camped on Leith Links. The military engineer Richard Lee scouted around the town on 12 September looking to see if it could be made defensible. On 14 September the English began digging a trench on the south-east side of Leith near the Firth of Forth. William Patten wrote that the work was done as much for exercise as for defence, since the army only stayed for five days.

Example Output: b

Example Input: Question: How old was Purdee when the film that won four Emmy's came out? Passage:Fioretti, who wanted to sound less Italian, started to use the name Feury, and began to be artistic in many ways. Although Dyslexic, he authored several screenplays, began painting for the first time in 1966, and began producing tightly budgeted B-Movies in the early 1970s. Since the 1980s, he was the home producer of the feature film productions of his wife Lee Grant. With the 1986 published and by Grant staged documentation on homelessness in the US under President Ronald Reagan, Down and Out in America, for which Feury and with his co-producer Milton Justice received an Academy Award for Best Documentary Feature the following year. Going on to produce a number of documentary films as well as TV Movies based on the documentaries. The socially engaged documentary film project: his production  Baghdad ER  took a look at the activities of US military surgeons in the Iraq war zone. Baghdad ER, produced in conjunction with DCTV, HBO, and his longtime collaborators Roberta Morris Purdee and wife Lee Grant. The film went on to win four Emmys, a Peabody, and the Dupont-Columbia. 

Example Output: a

Example Input: Question: What teams had the newly hired head coach and offensive co-ordinator for the Argonauts worked for previously? Passage:However, with the 1982 season came the hiring of Bob O'Billovich as head coach and Mouse Davis as offensive co-ordinator. Davis implemented the run and shoot offense, and the Argos enjoyed a turnaround, going 9–6–1 that year; Condredge Holloway was the CFL's most outstanding player. The team ultimately fell short in their quest for a Grey Cup, losing 32–16 in a driving rainstorm to the mighty Edmonton Eskimos (in what would be the last of their five consecutive Grey Cup titles) in the final in front of a disappointed crowd at Exhibition Stadium. The 1983 season finally brought the championship home. The Argos finished 12–4 and Terry Greer set a CFL record with 2,003 receiving yards. Joe Barnes and Condredge Holloway were a potent duo at quarterback. The Double Blue returned to the Grey Cup, this time facing the BC Lions at BC Place Stadium in Vancouver. Despite the hostile crowd, Toronto defeated BC 18–17 to win their first Grey Cup since 1952. The Argos were generally competitive for the remainder of the 1980s, thanks in large part to talented players such as Gill "The Thrill" Fenerty and Darrell K. Smith, but a return to the glory of 1983 proved elusive (outside of an appearance in the 1987 Grey Cup game, in which they lost in the last minute to the Edmonton Eskimos 38–36).

Example Output:
b