Task: Question Generation
Input (English): Context : Karl-Heinz Krahl (25 September 1914 -- 14 April 1942) was a German Luftwaffe ace and recipient of the Knight's Cross of the Iron Cross during World War II. The Knight's Cross of the Iron Cross was awarded to recognise extreme battlefield bravery or successful military leadership. 
Subject : Karl-Heinz Krahl 
Relation : award received
Output (English): Which award did Karl-Heinz Krahl get?