Task: Question Understanding
Input (English): Context : SilkAir Flight 185 was a scheduled SilkAir passenger flight from Jakarta, Indonesia, to Singapore, which crashed into the Musi River near Palembang in southern Sumatra, on 19 December 1997, killing all 97 passengers and seven crew on board. 
Question : The date of SilkAir Flight 185?
Output (English): point in time