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: Ogston was the son of Alexander Milne Ogston of Ardoe, Kincardineshire. He was educated at the Royal Military College, Sandhurst and commissioned a second lieutenant in the Gordon Highlanders in November 1897. He served on the North-West Frontier of India from 1897 to 1898 and took part in the Tirah Campaign under Sir William Lockhart. Promoted to lieutenant on 21 July 1899, he was later the same year sent to South Africa to serve as an intelligence officer in the Second Boer War. He took part in the Relief of Kimberley (February 1900), including the Battle of Magersfontein (11 December 1899), followed by fighting in the Orange Free State from February to May 1900, including the Battle of Paardeberg (18–27 February 1900). In May 1900 he was posted to the Transvaal Republic, where he took part in the occupation of Johannesburg and Pretoria, the capital of the republic, followed by service around the occupied areas, including the Battle of Bergendal (August 1900) and fighting near Lydenburg. He was promoted to captain on 22 January 1902, and following the end of hostilities in early June 1902 left Cape Town on board the SS Orotava, arriving at Southampton the next month.
 Link Information: 

General Sir William Stephen Alexander Lockhart (2 September 1841 Answer: 56

Answer: How old was Sir William Lockhart when Charles Ogston was under his command?


Question: Passage: The son of a baptist hotelier, Constandse completed the normal school between 1914 and 1918 and in this period came into contact with the teetotalers movement. In response to World War I, he developed anti-militarist ideas. He joined the Social-Anarchist Youth Organisation (Dutch Sociaal-Anarchistische Jeugd Organisatie, SAJO) in 1919. Within this organisation, he chose the side of the individualist faction within this organisation when factional struggles erupted, denouncing even trade organizations as counterrevolutionary. Instead of taking a job as a teacher, Constandse devoted himself to spreading anarchist ideas. He published two anarchist monthlies, Alarm (1922–1926) and Opstand ("Revolt", 1926–1928), which together with Herman Schuurman's De Moker and Arthur Lehning's Grondslagen renewed the theoretical basis of Dutch anarchism. Constandse's 1927 call for mutiny in De Vrije Socialist ("the free socialist"), following the sending of HNLMS Sumatra to Shanghai, led to a conviction for sedition and a prison sentence of two months.
 Link Information: Sumatra was built by the Nederlandsche Scheepsbouw Maatschappij in Amsterdam. She was laid down on 15 July 1916 and launched on 29 December 1920 by Queen Wilhelmina of the Netherlands.
 Answer: 1916

Answer: What year was construction started on the ship that was sent to Shanghai?


Question: Passage: The first complete Tosca recording was made in 1918, using the acoustic process. The conductor, Carlo Sabajno, had been the Gramophone Company's house conductor since 1904; he had made early complete recordings of several operas, including Verdi's La traviata and Rigoletto, before tackling Tosca with a largely unknown cast, featuring the Italian soprano Lya Remondini in the title role. The next year, in 1919, Sabajno recorded Tosca again, this time with more well-known singers, including Valentina Bartolomasi and Attilio Salvaneschi as Tosca and Cavaradossi. Ten years later, in 1929, Sabajno returned to the opera for the third time, recording it, by the electrical process, with the orchestra and chorus of the Teatro alla Scala and with stars Carmen Melis and Apollo Granforte in the roles of Tosca and Scarpia. In 1938 HMV secured the services of the renowned tenor Beniamino Gigli, together with the soprano Maria Caniglia as Tosca and conductor Oliviero De Fabritiis, for a "practically complete" recording that extended over 14 double-sided shellac discs.
 Link Information: none Answer: none

Answer:
How many years after the acoustic press were shellac discs invented?