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.

Input: Consider Input: 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?

Output: service entry


Input: Consider Input: Context : Xavier de Villepin graduated from the renowned French business school HEC Paris in 1949 and later from the Harvard Business School. 
Question : On what date did Xavier de Villepin die?

Output: date of death


Input: Consider Input: Context : Writer Ken Pontac previously posted a blog entry on the Happy Tree Friends website telling fans about the adventures of the staff making the game, but it was ended before the game's first slated release date in spring 2008. 
Question : What is the original channel that Happy Tree Friends played on?


Output: original network