Please answer the following question: Information: - Captain Sir Geoffrey de Havilland (27 July 1882 21 May 1965) was a British aviation pioneer and aircraft engineer. His Mosquito has been considered the most versatile warplane ever built, and his Comet was the first jet airliner to go into production. - "This article is not about" Gamo "subsidiary BSA Guns (UK) Limited or BSA Company or its successors." - The Airco de Havilland 16 was a British four - seat commercial biplane of the 1910s , designed by Geoffrey de Havilland , the chief designer at Airco . - The Aircraft Manufacturing Company Limited (Airco) was a British aircraft manufacturer operating from 1912 to 1920. Airco produced thousands of aircraft for the British military during the First World War, most of which were designed by their chief designer, Geoffrey de Havilland. Advertised in 1918 as the largest aircraft company in the world, Airco established the first airline in the United Kingdom, Aircraft Transport and Travel Limited, as a subsidiary. A glut of war surplus aircraft and a lack of government interest in aviation caused the company to become unprofitable, and in 1920 it was sold to Birmingham Small Arms Company, who had its operations liquidated later that year. - Aviation is the practical aspect or art of aeronautics, being the design, development, production, operation and use of aircraft, especially heavier than air aircraft. The word "aviation" was coined by French writer and former naval officer Gabriel La Landelle in 1863, from the verb "avier" (synonymous flying), itself derived from the Latin word "avis" ("bird") and the suffix "-ation". - Aircraft Transport and Travel Limited was a British airline formed during the First World War, a subsidiary of Airco. It was the first airline to operate a regular international flight (between London and Paris). What is the relationship between 'airco dh.16' and 'airliner'?
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instance of