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: The architectural style of which the church was built was a popular architectural style in the region for how many years? Passage:The church is constructed in punch-dressed sandstone ashlar, and has slate roofs with inserted skylight windows. Its architectural style is Early English. The plan consists of a four-bay nave without aisles, a two-bay chancel with a north chapel and a south vestry, and a west tower. The tower is in three stages, with clasping buttresses, and contains paired west doorways, a clock face in a diamond-shaped surround, and pairs of louvred bell openings. At the top of the tower is an embattled parapet with octagonal corner pinnacles, and there are more pinnacles at the angles of the nave. The bays of the nave are separated by buttresses, and each bay contains a corbel-table and a pair of lancet windows. The sides of the chancel also contain paired lancet windows, and the east window consists of a triple stepped lancet in a blank arch. The north chapel is gabled, and contains a wheel window. The interior has been remodelled, but originally it contained a three-sided gallery on cast iron columns.


Ex Output:
b


Ex 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.


Ex Output:
b


Ex Input:
Question: Did Strik study international law in France? Passage:Between 1979 and 1983, Strik studied social-cultural work at the social academy "Den Elzent" in Eindhoven. In the meanwhile, she worked at the Kindertelefoon, a phone help line for children. Between 1981 and 1985, she worked as a youth worker at the Cultural Youth Centre "De Effelaar" in Eindhoven. She continued to study international law at the Radboud University between 1985 and 1991, she also studied Turkish between 1989 and 1991. Between 1990 and 1993, she worked a legal consultant at the Youh Advice Centre in Amsterdam. Between 1994 and 1995, she briefly studied law at the Radbouw University. She also took courses at the Red Cross, Clingendael, and the University Utrecht where she studied war law, European law and administrative law. Between 1993 and 1996, she worked at Vluchtelingenwerk, an organization that helps refugees, as a legal consultant. She then worked as a judicial secretary at the court of Zwolle, working for the chamber of refugees. In 1997, she made the switch to politics: she began to work for the GreenLeft parliamentary party as a policy advisor on justice. Between 2001 and 2002, she worked as policy coordinator for the Ministry of Justice.


Ex Output:

b