In this task, you're given a question, along with a context passage. The passage will not have a direct answer to the question, but can include some information and a clue for the answer. Assuming you can only obtain information about one entity in the passage, your job is to determine whether information from the passage can be used to answer the question. Indicate your choice as `a` for Yes or `b` for No.

Example Input: Question: Which of the companies involved with the three-dimensional integrated circuit was founded first? Passage:In 1986, Mitsubishi Electric researchers Yoichi Akasaka and Tadashi Nishimura laid out the basic concepts and proposed technologies for 3D ICs. The following year, a Mitsubishi research team including Nishimura, Akasaka and Osaka University graduate Yasuo Inoue fabricated an image signal processor (ISP) on a 3D IC, with an array of photosensors, CMOS A-to-D converters, arithmetic logic units (ALU) and shift registers arranged in a three-layer structure. In 1989, an NEC research team led by Yoshihiro Hayashi fabricated a 3D IC with a four-layer structure using laser beam crystallisation. In 1990, a Matsushita research team including K. Yamazaki, Y. Itoh and A. Wada fabricated a parallel image signal processor on a four-layer 3D IC, with SOI (silicon-on-insulator) layers formed by laser recrystallization, and the four layers consisting of an optical sensor, level detector, memory and ALU.

Example Output: b

Example Input: Question: What cities were the two founders of the Communist Party of China from? Passage:The Republic of China was founded by the Kuomintang (KMT) leader Dr. Sun Yat-sen in 1912. The Kuomintang's prior revolutionary political group, the Revive China Society, was founded on 24 November 1894. It later merged with various other revolutionary groups to form the Tongmenghui in 1905. In August 1911, the Tongmenghui further merged with various other political parties in Beijing to form the KMT. In July 1914, the KMT re-organized itself as the "Chinese Revolutionary Party" in Tokyo, Japan. In 1919, the party officially renamed itself as "Kuomintang of China", which literally translates to "Chinese Nationalist Party". It was China's first major political party. In 1921, the Communist Party of China (CPC) was founded by Chen Duxiu and Li Dazhao in Shanghai as a study society and an informal network. Slowly, the CPC began to grow. These were the two major political parties in China, during the time when the ROC ruled mainland China from 1911 to 1949.

Example Output: b

Example Input: Question: When did rail line that the Albany-Sumner Avenues station was located close? Passage:Albany–Sumner Avenues was a station on the demolished BMT Fulton Street Line. It had 2 tracks and 2 side platforms. It was served by trains of the BMT Fulton Street Line. The station was opened on May 30, 1888, and had connections to the Sumner Avenue Line streetcars. Eastbound trains stopped at Albany Avenue, while westbound trains stopped at Sumner Avenue (now Marcus Garvey Boulevard). The next stop to the east was Troy Avenue. The next stop to the west was Tompkins Avenue. During 1912 and 1924, the Dual Contracts program installed a third track on the Fulton El between Nostrand Avenue and the new Hinsdale Street station. Albany-Sumner Avenues stations were closed during that time. In 1936 the Independent Subway System built an underground Fulton Street Subway station at Kingston–Throop Avenues between here and the nearby Brooklyn–Tompkins Avenues Station. The el station became obsolete.

Example Output:
b