TASK DEFINITION: Generate a question which can yield the answer mentioned in the input. Generated question must be answered by the answer provided in input, without using any extra knowledge.
PROBLEM: Context : Kaliganj massacre (Bengali: কালিগঞ্জ হত্যাকান্ড) refers to the massacre of unarmed Bengali Hindus fleeing to India in Kaliganj market, in the present day Jaldhaka Upazila of Nilphamari District on 27 April 1971. 
Answer : 27 April 1971

SOLUTION: What is the full date that Kaliganj massacre crashed on?

PROBLEM: Context : Elena Gabriela Ruse (born 6 November 1997 in Bucharest) is a Romanian tennis player. 
Answer : Bucharest

SOLUTION: What city is Elena Gabriela Ruse associated with?

PROBLEM: Context : Indian Airlines Flight 605 was an A320 fly-by-wire flight on 14 February 1990 that crashed on its final approach to Bengaluru (formerly Bangalore) airport, killing 92 people. 
Answer : 14 February 1990

SOLUTION:
When did Indian Airlines Flight 605 occurr?