TASK DEFINITION: Generate a correct and concise answer for the question based on the words in the context.
PROBLEM: 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?

SOLUTION: 1977

PROBLEM: Context : He proposes the Sanchi stupa was destroyed by Pushyamitra Shunga, but later restored by his successor Agnimitra. 
Question : Who is the offspring of Pushyamitra Shunga?

SOLUTION: Agnimitra

PROBLEM: Context : Activia is a brand of yogurt owned by Groupe Danone (``The Dannon Company'' in the United States) and introduced in France in 1987. 
Question : What company is Activia part of?

SOLUTION:
Danone