In this task, you're given a passage, further information available on a particular linked term from the statement, and an answer term. Your job is to generate a question that can use the information provided to obtain the given answer. You should use the information on both passage and link information to create the question. Note that the answer to the question should be exactly the given answer, and if the answer is none, the answer to the question shouldn't be obtainable from the passage or linked information.

Q: Passage: Dorothy Eugenia Miner was born in New York City, New York, on 4 November 1904. She attended the Horace Mann School before she enrolled in Barnard College in 1922, receiving her bachelor's degree four years later. Miner became the first Barnard International Fellow and studied at the Bedford College of the University of London. She studied medieval manuscript illumination with Meyer Schapiro at Columbia University in 1928–29 and received a fellowship to continue working on her dissertation on a Carolingian Apocalypse manuscript the following year. Miner was hired by the Pierpont Morgan Library to prepare an exhibition of illuminated manuscripts in 1933–34 and the director of the library, Belle da Costa Greene, recommended her for the position of keeper of manuscripts at the Walters Art Gallery, in Baltimore, Maryland. She got the job and became of the first professionally trained art historians working in an American museum. She was also curator of Islamic and Near Eastern Art as well as the head of the reference library for several years. From 1938 to 1969 Miner edited the Journal of the Walter Gallery and many catalogues published by the museum. She died of cancer in Baltimore in May 1973.
 Link Information: none Answer: none

A: When was the Pierpont Morgan Library built?
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Q: Passage: The son of the Russian-born drawing master and watercolourist, Alexander Cozens, John Robert Cozens was born in London. He studied under his father and began to exhibit some early drawings with the Society of Artists in 1767. In 1776, he displayed a large oil painting at the Royal Academy in London. Between 1776 and 1779 he spent some time in Switzerland and Italy, where he drew Alpine and Italian views, and in 1779 he returned to London. In 1782 he made his second visit to Italy, accompanied by the author William Beckford, spending much time at Naples. In 1783 he returned to England. In 1789 he published a set of Delineations of the General Character ... of Forest Trees. He submitted his work to the Royal Academy but it was entirely rejected, being judged as "not proper art". At the age of 42, three years before he died, he suffered a nervous breakdown and was committed to the Bethlem Royal Hospital asylum. The chief physician there was Dr. Thomas Monro who, also being a keen art collector, recognised Cozens' brilliance and bought his collection. Cozens died in London.
 Link Information: Alexander Cozens was born in St. Petersburg, Russia.  Answer: St. Petersburg

A: What city in Russia was Cozens born?
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Q: 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.
 Link Information: The force was created by Hermann Göring in 1933 Answer: 4

A:
How long had the Gestapo been established when Blachstein was arrested? 
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