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 : Q150 was the sequicentenary (150th anniversary) of the Separation of Queensland from New South Wales in 1859. 
Question : What was the date of Q150?
answer:
point in time


question:
Context : In 1998 ADV Films' decision to release Makai Tensho as Ninja Resurrection caused a wave of confusion among anime fans. 
Question : The Ninja Resurrection is based upon what?
answer:

based on