Classify the relation of question with context to one of these categories: 1) award received, 2) based on, collection, 3) conflict, 4) constellation, 5) convicted of, 6) date of death, 7) director, 8) drafted by, 9) educated at, 10) medical condition, 11) military branch, 12) narrative location, 13) occupation, 14) original network, 15) parent company, 16) point in time, 17) production company, 18) residence, 19) series, 20) service entry, 21) sex or gender, 22) spouse, 23) standards body question.

Input: Consider Input: 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. 
Question : Which award did Karl-Heinz Krahl get?

Output: award received


Input: Consider Input: Context : In cryptography, the IDEA NXT algorithm (previously known as FOX) is a block cipher designed by Pascal Junod and Serge Vaudenay of EPFL (Lausanne, Switzerland). 
Question : Which is the basis of IDEA NXT?

Output: based on


Input: Consider Input: Context : Ethiopian Airlines Flight 409 was an international commercial flight scheduled from Beirut to Addis Ababa that plunged into the Mediterranean Sea shortly after takeoff from Rafic Hariri International Airport on 25 January 2010, killing all 90 people on board. 
Question : The date of Ethiopian Airlines Flight 409 was what?


Output: point in time