Given the task definition and input, reply with output. 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.

Question: Was Dekanozov still Vice Commissar of the Ministry of Foreign Affairs of the USSR when Sheng was appointed head of the Kuomintang branch? Passage:Following Operation Barbarossa, the German invasion of the Soviet Union in June 1941, and the entry of the United States into World War II in December 1941, the Soviet Union became a less attractive patron for Sheng than the Kuomintang. By 1943 Sheng Shicai switched his allegiance to the Kuomintang after major Soviet defeats at the hands of the Germans in World War II, all Soviet Red Army military forces and technicians residing in the province were expelled, and the Republic of China National Revolutionary Army units and soldiers belonging to Ma Bufang moved into Xinjiang to take control of the province. Ma Bufang helped the Kuomintang build roads linking Qinghai and Xinjiang, which helped both of them bring Xinjiang under their influence. At August 1942 Sheng met Dekanozov, former Soviet ambassador to Nazi Germany and Vice Commissar of the Ministry of Foreign Affairs of the USSR, in Urumqi and demanded that the Soviet Union withdraw all military forces and political officers from Xinjiang in three months and remove all Soviet equipment from the territory of Soviet Concessions, including closing the Soviet oil fields in Tushangze (Jungaria) and the Soviet Aircraft Manufacturing Plant in Urumqi. On 29 August 1942, the day after Dekanozov left Urumqi, Sheng met Madame Chiang Kai-shek, wife of the Chinese Generalissimo, who flew to Urumqi with a letter from Chiang Kai-shek promising his forgiveness to Sheng for all of his previous deals. Sheng was appointed the head of the Kuomintang branch in Xinjiang in 1943 and allowed Kuomintang cadres into the province. To forge his ties with Kuomintang, on 17 September 1942 Sheng arrested a number of Chinese communists sent to Xinjiang by the Central Committee of the Communist Party of China in 1938 and executed them in 1943. Among the executed was Mao Zemin, brother of Mao Zedong. In the summer of 1944, following the German defeat on the Eastern Front, Sheng attempted to reassert control over Xinjiang and turned to the Soviet Union for support again. He arrested a number of Kuomintang cadres in Urumqi and sent a letter to Stalin offering to "incorporate Xinjiang into USSR as its 18th Soviet Socialistic Republic." Sheng Shicai asked Stalin for the post of ruler of the new Soviet Republic. Stalin refused to deal with Sheng and forwarded the confidential letter to Chiang Kai-shek. As a result, the Kuomintang removed him from the province in August 1944 and appointed him to a low-level post in the Ministry of Forestry in Chongqing.
b