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.

[EX Q]: Context : Los Premios de la Radio (The Radio Awards) nominated Roberto Tapia as Artist of the year, male artist of the year and the best song with banda ``Mirando al Cielo'' in 2012. 
Question : What gender was Roberto Tapia?
[EX A]: sex or gender

[EX Q]: Context : The AK-63 (also known in Hungarian military service as the AMM) is a Hungarian variant of the AKM assault rifle manufactured by the Fegyver- és Gépgyár (FÉG) state arms plant in Hungary. 
Question : What year did AK-63 come into use?
[EX A]: service entry

[EX Q]: Context : The Zanthus train collision occurred at a crossing loop on the Trans-Australian Railway between Perth and Sydney on 18 August 1999. 
Question : What date is associated with Zanthus train collision?
[EX A]:
point in time