Task: Question Generation
Input (English): Context : On 15 April 2008, Hewa Bora Airways Flight 122, a McDonnell Douglas DC-9-51 plane crashed into a residential and market area of Goma of the Democratic Republic of the Congo immediately south of Goma International Airport. 
Subject : Hewa Bora Airways Flight 122 
Relation : point in time
Output (English): On what date did Hewa Bora Airways Flight 122 take place?