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.

Example Input: Context : Turkish Airlines Flight 1951 (also known as the Poldercrash) was a passenger flight that crashed during landing at the Amsterdam Schiphol Airport, Netherlands, on 25 February 2009, resulting in the death of nine passengers and crew including all three pilots. 
Question : On what date did Turkish Airlines Flight 1951 occur?
Example Output: point in time

Example Input: Context : Kyla began her career in 2000 under OctoArts EMI Philippines and rose to prominence with the release of her second single ``Hanggang Ngayon'' (English translation: ``Until Now''). 
Question : What is Kyla's spouse's name?
Example Output: spouse

Example Input: Context : The Maschinengewehr 08 (or MG 08)--so-named after 1908, its year of adoption--was a development of the license made Maschinengewehr 01. 
Question : What year was MG 08 commissioned?
Example Output:
service entry