instruction:
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.
question:
Context : June 1942, the Aichi H9A was employed in a variety of second-line roles, including anti-submarine missions along the Japanese coasts, transport, paratroop training and liaison. 
Question : What was the year that Aichi H9A entered service?
answer:
service entry


question:
Context : ``Devil's Triad'' is the tenth episode of the eleventh season of the American police procedural drama NCIS, and the 244th episode overall. 
Question : Of what series is Devil's Triad a part of?
answer:
series


question:
Context : Warner Premiere was the direct-to-video label of Warner Home Video, itself the home video unit of Warner Bros. subsidiary of Time Warner. 
Question : What is Warner Premiere's parent company?
answer:

parent company