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.

[Q]: Context : The Tiuna was created to compete with the American-made Humvee, which was first shown to the public on July 20, 2004. 
Question : What year did Tiuna come into use?
[A]: service entry


[Q]: Context : Ken Marino as Ronald Wayne ``Ron'' Donald, the prideful team leader of Party Down catering who is very uptight when it comes to work and strives for customer satisfaction. 
Question : Which channel broadcast Party Down?
[A]: original network


[Q]: Context : The episode was directed by David Carson, who had only helmed one other episode before ``Yesterday's Enterprise'' was shot. 
Question : The Yesterday's Enterprise is part of a what series?
[A]:
series