In this task, you're given a question, along with a context passage which has extra information available on certain terms mentioned in it, i.e., the proper nouns in the passage. Your job is to determine whether information from more than one term is needed to answer the question. Indicate your choice as `a` for Yes or `b` for No.

Ex Input:
Question: Which of the construction materials that St Nicholas was constructed with has a higher value on the Mohs scale? Passage:St Nicholas is constructed in flint, with some conglomerate and brick, and has limestone dressings. The roofs are tiled. Its plan consists of a nave, a chancel with a north vestry (previously a porch), and a west tower. The tower is wholly octagonal. In each face of the upper stage of the tower is a lancet, and there is another lancet on the west side at a lower level. The parapet is battlemented. The tower has a west doorway in Norman style, which has possibly been re-set from elsewhere in the church. It has scalloped capitals, and zig-zag decoration on the arch. Inside the upper part of the tower is a 17th-century dovecote lined with brick nesting boxes. On the south side, between the tower and the nave, is a brick stair turret. The nave windows have two lights with Decorated tracery. Between the windows on the south side is another Norman doorway, again with zig-zag decoration. The north and south walls of the chancel have two-light windows with Y-tracery, and three-light windows with Perpendicular tracery. The east window has five lights. The east gable is decorated with grotesque carvings, and above the east window is head-corbel and a blocked niche. The vestry has two-light north and south windows. In the north wall of the nave is an Early English doorway, with dog-tooth ornament. Around the church are stepped buttresses.


Ex Output:
a


Ex Input:
Question: How many miles separate Bridge of Weir and Roker Park? Passage:Gallacher was born in Bridge of Weir and started his footballing career Linwood St Conval and Bridge of Weir before moving to Sunderland. He made his debut for Sunderland on 21 September 1929 against Arsenal in a 1–0 loss at Roker Park. He was part of the 1937 FA Cup Final winning side against Preston North End. In his career at Sunderland, Gallacher made 309 appearances and scored 108 goals in all competitions. He helped the "Black Cats" to win the First Division in 1935–36, scoring 20 goals in that title winning season. He then moved on to Stoke City in December 1938 just before the World War II. He only managed to play four matches for Stoke due to injury and left at the end of the 1938–39. He then played in Ireland for Coleraine and Cork United before signing for Cheltenham Town in September 1948 playing 8 games before leaving.


Ex Output:
a


Ex Input:
Question: What stadium does the team  Slater was released from in 2005 play in? Passage:Released from Wolverhampton Wanderers in 2005 without a first-team appearance to his name, Slater joined non-league Chasetown. Helping the "Chase" take Oldham Athletic to a replay at Boundary Park in the first round of the FA Cup in November 2005 was just the beginning of Slater's and Chasetown's cup adventures. By April 2006 he had won a trial with Tranmere Rovers, and was also being looked at by Blackpool and Crewe Alexandra, all English Football League clubs. He helped Chasetown to win the Midland Football Alliance title at the end of the 2005–06 season. He was at The Scholar Ground for the first season of the new Southern League Division One Midlands tier (2006–07). He came to prominence when playing in Chasetown's 1–0 FA Cup victory over League One Port Vale in December 2007. In doing this he helped Chasetown become the lowest ever ranked club to reach as far as the Third Round (proper) of the FA Cup. Vale was the eighth club Chasetown had vanquished in their campaign that season. In his three years at the club he had played 146 league games for the "Scholars", scoring one goal.


Ex Output:

b