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.

Input: Consider Input: Question: Which country's air force was garrisoned at Taichung until 1955? Passage:Taichung International Airport was constructed during the era of Japanese rule and was named . The United States Air Force (USAF) had been garrisoning the base with two fighter squadrons until the Sino-American Mutual Defense Treaty came into force on March 3, 1955. The airport then expanded in 1954 according to the Sino-American Mutual Defense Treaty, and later renamed Ching Chuan Kang Air Base (CCK) in memory of General Qiu Qingquan. In 1966 the American Air Force established a joint forces air-base at CCK. It was the largest air force base in the Far East at the time, allowing Boeing B-52 Stratofortress bombers to land. During the Vietnam War, CCK became a depot for the USAF. The US Military used CCK and Shuinan Airport to run many of its long-distance Vietnam, Cambodia and Laotian bombing, scouting and cargo transport runs during the Vietnam War era. This base was shut down and most American facilities were removed after U.S. established diplomatic relations with the China in 1979.

Output: b

Input: Consider Input: Question: Who wrote the musical Caissie starred in, both on Broadway and on the national tour? Passage:A week after graduating from AMDA she was cast in the role of Maureen Johnson in the U.S. national tour of Rent. Levy then played the role of Penny Pingleton in both the Broadway and U.S. national tour companies of Hairspray after understudying the role in the Toronto company. During this time, she also covered the role of Amber Von Tussle. In 2008, Levy starred as Elphaba in the Los Angeles sit-down production of Wicked. She had previously understudied the role on Broadway and briefly served as standby in Los Angeles. She next starred as Sheila in the Broadway revival of Hair in 20092010 at the Al Hirschfeld Theatre. She transferred to the West End revival in 2010 at the Gielgud Theatre.

Output: b

Input: Consider Input: Question: How many songs were on Dami Im's first studio album? Passage:The discography of South Korean-born Australian recording artist Dami Im consists of five studio albums, two extended plays, ten singles, two album appearances, and four music videos. Im began her music career as a gospel singer in Korea and independently released her debut studio album, Dream, in 2010. She was the winner on the fifth season of The X Factor Australia in 2013, and subsequently received a contract with Sony Music Australia. Im released her self-titled second studio album in November 2013, which features selected songs she performed as part of the top twelve on The X Factor. The album debuted at number one on the ARIA Albums Chart and was certified platinum by the Australian Recording Industry Association (ARIA), denoting shipments of 70,000 copies. Additionally, the album also included Im's debut single "Alive", which topped the ARIA Singles Chart and was certified platinum. She became the first X Factor Australia contestant to follow up a number one single with a number one album on the ARIA Charts.
Output: b