Input: Read this: Through publicly funded emergency relief programs concentrating on agricultural land-improvement projects and road construction, the "Erich Koch Plan" for East Prussia allegedly made the province free of unemployment; on August 16, 1933 Koch reported to Hitler that unemployment had been banished entirely from East Prussia, a feat that gained admiration throughout the Reich. Koch's industrialization plans led him into conflict with R. Walther Darre, who held the office of the Reich Peasant Leader (Reichsbauernfuhrer) and Minister of Agriculture. Darre, a neopaganist rural romantic, wanted to enforce his vision of an agricultural East Prussia. When his "Land" representatives challenged Koch's plans, Koch had them arrested.
Question: On what date were Koch's "Land" representative arrested?

Output: unanswerable

Input: Read this: In 2000, TCM started the annual Young Composers Film Competition, inviting aspiring composers to participate in a judged competition that offers the winner of each year's competition the opportunity to score a restored, feature-length silent film as a grand prize, mentored by a well-known composer, with the new work subsequently premiering on the network. As of 2006, films that have been rescored include the 1921 Rudolph Valentino film Camille, two Lon Chaney films: 1921's The Ace of Hearts and 1928's Laugh, Clown, Laugh, and Greta Garbo's 1926 film The Temptress.
Question: Who starred in he Ace of Hearts?

Output: unanswerable

Input: Read this: German air attacks on the British Isles increased in 1915 and the AA efforts were deemed somewhat ineffective, so a Royal Navy gunnery expert, Admiral Sir Percy Scott, was appointed to make improvements, particularly an integrated AA defence for London. The air defences were expanded with more RNVR AA guns, 75 mm and 3-inch, the pom-poms being ineffective. The naval 3-inch was also adopted by the army, the QF 3 inch 20 cwt (76 mm), a new field mounting was introduced in 1916. Since most attacks were at night, searchlights were soon used, and acoustic methods of detection and locating were developed. By December 1916 there were 183 AA Sections defending Britain (most with the 3-inch), 74 with the BEF in France and 10 in the Middle East.
Question: Who was tasked with the job to make improvements to the AA as a result of the German attacks?

Output: Royal Navy gunnery expert, Admiral Sir Percy Scott

Input: Read this: Prior to 1917, Turkey used the lunar Islamic calendar with the Hegira era for general purposes and the Julian calendar for fiscal purposes. The start of the fiscal year was eventually fixed at 1 March and the year number was roughly equivalent to the Hegira year (see Rumi calendar). As the solar year is longer than the lunar year this originally entailed the use of "escape years" every so often when the number of the fiscal year would jump. From 1 March 1917 the fiscal year became Gregorian, rather than Julian. On 1 January 1926 the use of the Gregorian calendar was extended to include use for general purposes and the number of the year became the same as in other countries.
Question: What calendar did Turkey use before 1917 for general purposes?

Output:
lunar Islamic