Definition: 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.
Input: Question: When was the end of the dynasty  which Chang'an served as capital? Passage:Ximing Temple () was a famous temple in Chang'an, the capital of the Tang dynasty in Chinese history. Chang'an, current day Xi'an, was the eastern terminus of the Silk Road, and a cosmopolitan metropolis. Ximing was established by Tang Gaozong in 656. It was at Ximing that pilgrim and traveller Xuanzang (602-664) had translated the scriptures he had brought back from India. Another traveller Yijing (635-713) also based himself at Ximing while working on translations of Indian scriptures. Indian scholar monk Shubhākarasimha, was responsible for the introduction of the Mahavairocana Sutra and the tantric traditions associated with it. Japanese monk, Kukai studied Sanskrit there under the tutelage of Gandharan pandit Prajñā (734-810?) who had been educated at the Indian Buddhist university at Nalanda. Ximing was celebrated for its library which was the most comprehensive library of Buddhist texts in China at the time. Woncheuk (613–696) (Chinese Yuáncè) was a Korean Buddhist monk, also known as Ximing Fashi (西明法师) after the name of this temple where he did most of his important work.


b