Generate a correct and concise answer for the question based on the words in the context.

Ex Input:
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?

Ex Output:
1977


Ex Input:
Context : Con Passionate is a Welsh-language television drama series, written by Siwan Jones and directed by Rhys Powys for S4C. 
Question : Where can you find the show Con Passionate?

Ex Output:
S4C


Ex Input:
Context : The Hilton Buenos Aires was designed by Mario Roberto Álvarez, constructed by local developer Benito Roggio at a cost of around US$80 million, and inaugurated in January 2000. 
Question : Which designer was responsible for Hilton Buenos Aires?

Ex Output:

Mario Roberto Álvarez