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 15441549, 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: Is Carl Linnaeus older than the French zoologist who introduced the horned screamer in the genus Anhima? Passage:The horned screamer was described in 1766 by the Swedish naturalist Carl Linnaeus in the twelfth edition of his Systema Naturae. He introduced the binomial name Palamedea cornuta. The horned screamer is now the only species placed in the genus Anhima that was introduced by the French zoologist Mathurin Jacques Brisson in 1760. The specific epithet cornuta is the Latin word for "horned". The German naturalist Georg Marcgrave had used the Latin name Anhima in 1648 for the horned screamer in his Historia naturalis Brasiliae. The name was from the word for the bird in the Tupi language of South America.

Example Output: b

Example Input: Question: What grades attend the school near Boat Club Road? Passage:FM 1220 begins at an intersection with SH 183 in the Far Greater Northside area of Fort Worth. The highway travels in a northwestern direction along Azle Avenue through a residential area and runs along the northern edge of Sansom Park before entering Lake Worth. In Lake Worth, FM 1220 has a junction with I-820 and turns north onto Boat Club Road near Lake Worth High School. The highway travels in a northern direction near several subdivisions, running between Lake Worth and Marine Creek Reservoir, before re-entering Fort Worth near Saginaw. FM 1220 continues to run near several subdivisions in far northwest Fort Worth and turns west north of an intersection with Park Drive, then enters the town of Eagle Mountain. The highway runs through the town and runs close to Eagle Mountain Lake. West of Eagle Mountain, the Boat Club Road designation leaves the highway, with FM 1220's local designation becoming Morris Dido Newark Road. The highway runs in a northwestern direction near the eastern shore of Eagle Mountain Lake with state maintenance ending at Peden Road at the southern boundary of Pecan Acres; Morris Dido Newark Road continues past Peden Road for another to FM 718 near Newark.

Example Output:
a