instruction:
Generate a correct and concise answer for the question based on the words in the context.
question:
Context : The ESO 3.6 m Telescope is an optical reflecting telescope run by the European Southern Observatory at La Silla Observatory, Chile since 1977, with a clear aperture of about 3.6 metres (140 in) and 8.6 m2 (93 sq ft) area. 
Question : In which year was the service entry date for ESO 3.6 m Telescope?
answer:
1977


question:
Context : ISO 639 is a set of standards by the International Organization for Standardization that is concerned with representation of names for language and language groups. 
Question : Who set the standards for ISO 639?
answer:
International Organization for Standardization


question:
Context : Hans-Joachim Schibau (17 November 1915 -- 22 July 1985) was a highly decorated Major im Generalstab in the Luftwaffe during World War II, and a recipient of the Knight's Cross of the Iron Cross. 
Question : Which award was honoured to Hans-Joachim Schibau?
answer:

Knight's Cross of the Iron Cross