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.
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Question: Passage: A thin film is a layer of material ranging from fractions of a nanometer (monolayer) to several micrometers in thickness. The controlled synthesis of materials as thin films (a process referred to as deposition) is a fundamental step in many applications. A familiar example is the household mirror, which typically has a thin metal coating on the back of a sheet of glass to form a reflective interface. The process of silvering was once commonly used to produce mirrors, while more recently the metal layer is deposited using techniques such as sputtering. Advances in thin film deposition techniques during the 20th century have enabled a wide range of technological breakthroughs in areas such as magnetic recording media, electronic semiconductor devices, LEDs, optical coatings (such as antireflective coatings), hard coatings on cutting tools, and for both energy generation (e.g. thin-film solar cells) and storage (thin-film batteries). It is also being applied to pharmaceuticals, via thin-film drug delivery. A stack of thin films is called a multilayer.
 Link Information: none Answer: none

Answer: How many thin films need to be stacked to have a special label applied to them?


Question: Passage: His own military genius blossomed during the Napoleonic Wars. During the 1805 Campaign, Yermolov served in the rear and advance guards and distinguished himself at Amstetten and Austerlitz. For his actions, he was promoted to colonel on 16 July 1806. The following year, he participated in the campaign in Poland, serving in Prince Bagration's advance guard. He distinguished himself commanding an artillery company in numerous rearguard actions during the retreat to Landsberg as well as in the Battle of Eylau. In June 1807, Yermolov commanded horse artillery company in the actions at Guttstadt, Deppen, Heilsberg and Friedland, being awarded the Order of St. George (3rd class, 7 September 1807). He was promoted to major general on 28 March 1808 and was appointed inspector of horse artillery companies. In early 1809, he inspected artillery companies of the Army of the Danube. Although his division took part in the 1809 campaign against Austria, Yermolov commanded the reserves in Volhynia and Podolsk gubernias, where he remained for the next two years. In 1811, he took command of the guard artillery company and in 1812, became the Chief of Staff of the 1st Western Army.
 Link Information: The Battle of Friedland (June 14, 1807) Answer: the Battle of Guttstadt-Deppen

Answer: Which of the battles that Yermolov commanded during June 1807 occurred first?


Question: Passage: Đorđević was born in Belgrade to a prominent Serbian family. When he was a law student, the Germans invaded Yugoslavia during World War II and he joined the resistance movement of Dragoljub Mihailovic. Đorđević was captured by the Germans and was imprisoned, ultimately in Mauthausen-Gusen concentration camp in Austria. He survived the war, but was in turn imprisoned by the communist regime in post World War II Yugoslavia. After he was pardoned and released, Đorđević was eventually allowed to commence study at the University of Belgrade, where he was a student of Vaso Čubrilović (one of the members of the Young Bosnia who conspired to assassinate Franz Ferdinand which led to the outbreak of World War I). Đorđević was awarded his doctorate in 1962. In 1970, Đorđević took up a position as a Full Professor of History at the University of California, Santa Barbara, joining a strong faculty in European History including Joachim Remak, Frank J. Frost, Leonard Marsak, Alfred Gollin, and C. Warren Hollister. He was elected a member of the Serbian Academy of Science and Arts in 1985. A popular undergraduate lecturer and graduate mentor at the University of California, Santa Barbara, in 1992 many of his former students contributed to his Festschrift entitled Scholar, Patriot, Mentor: Historical Essays in Honor of Dimitrije Djordjevic. In retirement, Đorđević published his autobiography, Scars and Memory: Four Lives in One Lifetime, describing his World War II and post World War II experiences. Professor Đorđević died in Santa Barbara on March 5, 2009.
 Link Information: 18 December 1863 – 28 June 1914 Answer: 1914

Answer:
What year was Franz Ferdinand assassinated?