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In this task, you're given a question, along with a context passage which has extra information available on certain terms mentioned in it. Your job is to determine which sentence(s) from the passage can be used to search for further information needed to answer the question.
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Question: How old was Erwin Ackerknecht when he was excluded from the SAPD in 1937? Passage:Inside the SAPD, the first part of 1937 saw an intensification of differences over attitudes to a possible political party of the united left or a Popular front, and more precisely over the party's approach to the Soviet Union. The differences led to Peter Blachstein's exclusion from the SAPD. Others excluded at the same time included his political mentor and Erwin Ackerknecht: the three became the focus of a short-lived political grouping known as "Neuer Weg" ("New Way"). Blachstein was also affected more directly by the intense political tensions radiating out from Moscow, based on Stalin's suspicions - not entirely unfounded - that there might be comrades in the Soviet Union and further west in Europe who favoured an alternative Soviet leader. The POUM, of which Blachstein was a member, backed a broadly Trotskyite vision for a communist future and its members therefore became targets for Soviet agents. In June 1937 Blachstein was arrested in Barcelona by communist secret police and accused of spying for Franco and working for the Gestapo. With approximately 100 other foreign detainees he was taken to a large garage which had been adapted for use as an ad hoc prison. Because of the appalling hygiene he soon fell ill with Tuberculosis, as a result of which he was transferred to a sanatorium controlled by anarchist comrades. Helped by Spanish friends, in January 1938 he succeeded in escaping back to France.

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Others excluded at the same time included his political mentor and Erwin Ackerknecht: the three became the focus of a short-lived political grouping known as "Neuer Weg" ("New Way")


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Question: How old was Charles' maternal grandfather when his father was born? Passage:Merivale was the second son of John Herman Merivale (1770–1844) and Louisa Heath Drury, daughter of Joseph Drury, headmaster of Harrow. He was educated at Harrow School under George Butler from 1818 to 1824, where his chief schoolfriends were Charles Wordsworth and Richard Chenevix Trench. He took part in the Eton versus Harrow cricket match in 1824. In 1824 he was offered a post in the Indian civil service, and went for a short time to Haileybury College, where he did well in Oriental languages. Deciding against an Indian career, he went up to St John's College, Cambridge in 1826. Among other distinctions he came out as fourth classic in 1830, and in 1833 was elected fellow of St John's. He was a member of the Apostles' Club, his fellow-members including Tennyson, A. H. Hallam, Monckton Milnes, W. H. Thompson, Trench and James Spedding. Merivale was the main protagonist on the Cambridge side in instigating the Oxford and Cambridge Boat Race held at Henley on Thames in 1829. He rowed at number four in the Cambridge boat in the race which Oxford won.

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Merivale was the second son of John Herman Merivale (1770–1844) and Louisa Heath Drury, daughter of Joseph Drury, headmaster of Harrow


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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.

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Ximing Temple () was a famous temple in Chang'an, the capital of the Tang dynasty in Chinese history