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.

Example Input: Question: Which of the schools that Ari Brynjolfsson attended or worked at has existed the longest? Passage:Ari Brynjolfsson was born in Akureyri, Iceland, one of the seven children of Brynjólfur Sigtryggsson and Guðrún Rósinkarsdóttir from Hörgárdalur. He lived in Krossanes, Eyjafjörður and graduated from Menntaskólinn á Akureyri in 1948, then studied nuclear physics at the Niels Bohr Institute, University of Copenhagen, Denmark, from 1948 to 1954, gaining his PhD, with a thesis which dealt with a device he had constructed for accurately measuring magnetism in rocks. Following this he became a special research fellow of the University of Iceland from 1954 to 1955, then an Alexander von Humboldt fellow of the University of Göttingen, Germany, from 1955 to 1957. While at Göttingen he contributed important work in magnetic moments, using a self-devised instrument with which he and others provided the strongest evidence to that date for magnetic field reversals.

Example Output: a

Example Input: Question: How many years after the first MCCA Knockout Trophy event did Lovell make his debut for Wales Minor Counties? Passage:Lovell made his debut for Wales Minor Counties in the 1998 MCCA Knockout Trophy against the Warwickshire Cricket Board. He played Minor counties cricket for Wales Minor Counties from 1998 to 2004, which included 12 Minor Counties Championship matches and 3 MCCA Knockout Trophy matches. In 1998, he made his List A debut against Nottinghamshire, in the NatWest Trophy. He played a further List A match for the team, against the Sussex Cricket Board in the 2nd round of the 2002 Cheltenham & Gloucester Trophy which was held in 2001. In his 2 List A matches, he scored 13 runs at a batting average of 6.50, with a high score of 8.

Example Output: b

Example Input: Question: Huizong's son was how old when he abdicated and passed the throne to him? Passage:Emperor Huizong of Song (7 June 1082 – 4 June 1135), personal name Zhao Ji, was the eighth emperor of the Song dynasty in China. He was also a very well-known calligrapher. Born as the 11th son of Emperor Shenzong, he ascended the throne in 1100 upon the death of his elder brother and predecessor, Emperor Zhezong, because Emperor Zhezong's only son died prematurely. He lived in luxury, sophistication and art in the first half of his life. In 1126, when the Jurchen-led Jin dynasty invaded the Song dynasty during the Jin–Song Wars, Emperor Huizong abdicated and passed on his throne to his eldest son, Zhao Huan who assumed the title Emperor Qinzong while Huizong assumed the honorary title of Taishang Huang (or "Retired Emperor"). The following year, the Song capital, Bianjing, was conquered by Jin forces in an event historically known as the Jingkang Incident. Emperor Huizong, along with Emperor Qinzong and the rest of their family, were taken captive by the Jurchens and brought back to the Jin capital, Huining Prefecture in 1128. The Jurchen ruler, Emperor Taizong of Jin, gave the former Emperor Huizong a title, Duke Hunde (literally "Besotted Duke"), to humiliate him. After his surviving son, Zhao Gou, declared himself as the dynasty's tenth emperor as Emperor Gaozong, the Jurchens used him, Qinzong, and other imperial family members to put pressure on Gaozong and his court to surrender. Emperor Huizong died in Wuguo after spending about nine years in captivity.

Example Output:
b