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: 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: Did the highest scoring fighter ace have any siblings? Passage:After a short rest, the 90th continued across the Moselle River to take Mainz, 22 March, and crossed the rivers Rhine, the Main, and the Werra in rapid succession. Pursuit continued to the Czech border, 18 April 1945, and into the Sudetes mountain range. The division was en route to Prague when they came upon the remaining 1500 emaciated prisoners left behind by the SS at Flossenburg concentration camp. Today, a memorial wall at the former camp honors the 90th as the liberators of Flossenburg concentration camp. A week later, word came that the war in Europe ended on 8 May 1945. On that same day, Erich Hartmann, the highest-scoring fighter ace in history, along with a squadron of the elite Jagdgeschwader 52 fighter wing (the highest-scoring fighter wing in history), surrendered to the 90th.

Example Output: b

Example Input: Question: How much time had pass between Colonel Burdeinei taking command of 24th Tank Corps and the start of the Battle of Kursk? Passage:On April 1942, when the 24th Tank Corps was formed, Burdeinei joined it as chief of staff to General Badanov. The Corps was sent to engage the advancing German forces in the South, and was nearly wiped out in the fighting near the Don River, during July. By late October, the unit has recovered from its losses after several months in the reserve. It was assigned to the Southwestern Front and took part in the Battle of Stalingrad. On December, the Corps destroyed the Tatsinskaya Airport and was renamed 2nd Tatsinskaya Guards Tank Corps in honor of this operation. After the Battle of Stalingrad the Corps was made part of the Voronezh Front on March. On 26 June 1943, Colonel Burdeinei assumed command over the Corps, holding the post to the end of the war. As such, he participated in the Battle of Kursk, and was promoted to Major General on 31 August. On 3 July 1944, during Operation Bagration, his units were the first to enter Minsk and liberated the city. He was promoted to the rank of Lieutenant General on the 2 November 1944. The Corps later took part in the Baltic, East Prussian, Vistula-Oder and Berlin operations. For his leadership during the Minsk Offensive he was awarded the title Hero of the Soviet Union (Medal no. 5026) on 19 April 1945.

Example Output:
b