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: Of the provinces populated by founders of the Qing dynasty, which one has a larger population? Passage:The Qing dynasty was founded not by Han Chinese, who form the majority of the Chinese population, but by a sedentary farming people known as the Jurchen, a Tungusic people who lived around the region now comprising the Chinese provinces of Jilin and Heilongjiang. Although the Ming dynasty held control over Manchuria since the late 1380s, Ming political existence in the region waned considerably after the death of the Yongle Emperor. What was to become the Manchu state was founded by Nurhaci, the chieftain of a minor Jurchen tribe in Jianzhou in the early 17th century. Originally a vassal of the Ming emperors, Nurhaci started to take actual control of most of Manchuria over the next several decades. In 1616, he declared himself the "Bright Khan" of the Later Jin state. Two years later he announced the "Seven Grievances" and openly renounced the sovereignty of Ming overlordship to complete the unification of those Jurchen tribes still allied with the Ming emperor. After a series of successful battles against both the Ming and various tribes in Outer Manchuria, he and his son Hong Taiji eventually controlled the whole of Manchuria. Soon after the establishment of the Qing dynasty, the territory of today's Primorsky Kray was made part of the Government-general of Jilin, and along with the lower Amur area was controlled from Ninguta (a garrison town south of today's Mudanjiang).


Ex Output:
a


Ex Input:
Question: Was the waverly route entirely within the Scottish borders? Passage:The Waverley Route spawned a series of branches serving the towns and villages in the Scottish Borders: a branch line from Kelso Junction near reached Kelso where it met an NER branch from . The NBR Chairman, Richard Hodgson, sought to link the Waverley Route with the Edinburgh-Berwick line between Ravenswood Junction, north of St Boswells, and ; the branch between Reston and Duns had been completed in 1849 and a western section to St Boswells was promoted as the Berwickshire Railway. It opened throughout on 2 October 1865. Other towns to be connected were Jedburgh by the independent Jedburgh Railway which was inaugurated on 17 July 1856 and worked by the NBR, and Selkirk via the Selkirk and Galashiels Railway, also opened in 1856 and operated by the NBR, while Langholm received a branch from , and Gretna one from . One of the last branches to be constructed was the Lauder Light Railway in 1901; this replaced an omnibus subsidised by the NBR providing access from the town of Lauder, famed for its trout, and connecting with trains at .


Ex Output:
a


Ex Input:
Question: How many people reside in the city where US 311 begins at the US 52/NC 8 interchange? Passage:US 311 begins at the US 52/NC 8 interchange in Winston-Salem, NC. It follows N Martin Luther King Jr Dr for a short time before continuing northeast along a two-lane road. It travels northeast and intersects NC 66 at the edge of Walkertown, then turns to follow Harley Drive and turns again to follow Main Street through town. Leaving Walkertown, the road takes the local name of Walnut Cove Road. At the southern edge of the town of Walnut Cove NC 65 joins for a short concurrency. At the northern boundary of Walnut Cove, NC 89 has its terminus at US 311, and the highway turns northeast. North Carolina Highway 772 terminates at US 311 near Pine Hall and entering the town of Madison, US 311 takes a westerly route. West of Madison, it joins with Future Interstate 73/US 220 briefly to Mayodan, then leaving the freeway, it joins with NC 135 towards Eden. Three other NC routes join with 311 in Eden in short succession: NC 770, NC 87 and NC 14, then the 4 joined routes cross the Dan River along Van Buren Street in Eden. US 311 leaves Van Buren Street on a grade-separated interchange onto Meadow Road near the Eden Mall, heading northeast into a rural area before crossing into Virginia.


Ex Output:

b