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.
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Question: Context : Veronika Martinek (born 3 April 1972) is a former professional female tennis player playing for Germany. 
Question : Which sex is Veronika Martinek?

Answer: sex or gender


Question: Context : Udo Cordes (22 July 1921 -- 7 March 2007) was a highly decorated Oberleutnant in the Luftwaffe during World War II, and a recipient of the Knight's Cross of the Iron Cross. 
Question : What award was received by Udo Cordes?

Answer: award received


Question: Context : The Lyre of Mesopotamia was unveiled in December 2009 during an international congress held by UN-Habitat and IAARA in Qazvin, Iran, among other ancient instruments. 
Question : Whose direction is The Lyre of Mesopotamia?

Answer:
director