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: What year was the treaty that opened up the Korean Peninsula to Japanese trade signed? Passage:Un'yo was one of the ships dispatched to Kyushu in 1874 during the Saga Rebellion. In May 1875, she carried diplomats to Busan in Korea in an attempt by the Japanese government to open diplomatic relations with the Joseon dynasty government. After they were rebuffed in these negotiations, the Japanese government again dispatched Un'yo in September 1875 under the command of Inoue Yoshika to provoke a military response, in what was later termed the Ganghwa Island incident. This eventually led to the Treaty of Ganghwa, which opened the Korean Peninsula to Japanese trade. In 1876, Un'yo was assigned to assist in the suppression of the Hagi Rebellion, another uprising of disaffected former samurai. Un'yo was severely damaged when she ran aground off the coast of the Kii Peninsula, and was scrapped the following year.

Ex Output:
b

Ex Input:
Question: What cities were the members of the first High National Council from? Passage:After the Arrow Cross Party's coup and the resignation of Horthy on October 16, 1944 Ferenc Szalasi was appointed "Leader of the Nation". He established a Regent Council of three members, all from the Hungarian Nazi party. After the Soviet occupation of Hungary a High National Council formed in 1945 which was the collective head of state until the declaration of the Second Hungarian Republic. Members of the first High National Council were Bela Zsedenyi (Speaker of the Interim National Assembly), Bela Miklos (Prime Minister) and Erno Gero (from the Hungarian Communist Party, later replaced by Jozsef Revai, then by Matyas Rakosi). But the real power was in the hands of the Allied Control Commission, led by Kliment Voroshilov.

Ex Output:
a

Ex Input:
Question: Which of the cities where the cup matches have been held has a larger population? Passage:In 2002, the International Ice Hockey Federation (IIHF) announced that it would acknowledge the site of Victoria Rink with "a commemorative plaque or other historical site marker to remind the passers-by of the existence of the Victoria Skating Rink, the birthplace of organized hockey." The commemoration has been marked in two ways. On May 22, 2008, a commemorative plaque was dedicated at the nearby Centre Bell, along with a plaque honouring James Creighton. Further, the IIHF created the Victoria Cup, a trophy named for the arena, for whichalong with 1 million Swiss francsone National Hockey League team and the champion of the European Champions Hockey League play-off annually. The first Cup match was held in Berne, Switzerland on October 1, 2008 between the New York Rangers and the Metallurg Magnitogorsk. The next, and last, edition of the Victoria Cup was held in Zurich on September 29, 2009, between the ZSC Lions and the Chicago Blackhawks.

Ex Output:
a