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: In what year was the commander in chief who sent Elles to investigate the first tanks born? Passage:In August 1915, after recovering from his injuries, Elles was one of three officers specially selected by General Sir William Robertson, soon to be Chief of the Imperial General Staff (CIGS), the professional head of the British Army, to liaise with troops at the front and pass the information directly to the British General Headquarters (GHQ). In January 1916, as a General Staff Officer (GSO), Elles was sent by General Sir Douglas Haig, the Commander-in-Chief (C-in-C) of the BEF on the Western Front, to investigate the first tanks or "caterpillars" being built in England. He attended the first trials of "Mother" and reported back to Haig on its success. During the summer of 1916, he was tasked to report back from the Somme, where the tanks were first used. Elles was appointed to head the Heavy Branch (the first tank units) of the Machine Gun Corps in France on 29 September 1916, with the temporary rank of colonel. His responsibilities included its advanced training and tactical employment. He also commanded the large central depot and workshops established near Bermicourt.

Example Output: b

Example Input: Question: How many Korean diaspora are there in the Philippines? Passage:Koreans in Vietnam is a community of Vietnam with a population of Korean expatriates along with Vietnamese citizens of Korean ancestry. The population initially came in a military capacity, fighting on both sides of the Vietnam War. After the end of the war, there was little Korean migration or tourism in Vietnam, until the rise of the South Korean economy and the decline of the North resulted in an influx of South Korean investors and North Korean defectors, as well as South Korean men seeking Vietnamese wives. As of 2011, according to statistics of South Korea's Ministry of Foreign Affairs and Trade, they numbered roughly eighty thousand people, making them the second-largest Korean diaspora community in Southeast Asia, after the Korean community in the Philippines, and the tenth-largest in the world. A more recent estimate from Vietnam Television says their population might be as large as 130,000.

Example Output: a

Example Input: Question: Who was selected as the first pick in the draft that Kleinendorst was chosen 77th? Passage:Kleinendorst played for Providence College for four years, from 1979–80 to 1982–83, for Lou Lamoriello. He was selected in the fourth round (77th overall) of the 1980 NHL Entry Draft by the New York Rangers, but never played in the NHL. He was a member of the Tulsa Oilers (CHL) team that suspended operations on February 16, 1984, playing only road games for final six weeks of 1983–84 season. Despite this adversity, the team went on to win the Adams Cup. In 1986–87 he played with Iserlohn (Germany) and Peliitat Heinola (Finland) teams, and then with the Rotterdam Pandas in the Netherlands during the 1987–88 season, Ingolstadt (Germany) 1988–89, and continued to play minor league hockey through 1990.

Example Output:
b