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 : TAROM Flight 371 was an Airbus A310 that crashed near Baloteşti in Romania on 31 March 1995. 
Question : When did TAROM Flight 371 occur?
Example Output: point in time

Example Input: Context : Andrew Snape Douglas was born in Edinburgh on 8 October 1761, the son of Dr. William Douglas, a medical doctor of Springfield, and Lydia Hamond, daughter of a London merchant and shipowner. 
Question : What military branch did Andrew Snape Douglas serve?
Example Output: military branch

Example Input: Context : The Gewehr 98 action, using stripper clip loading with the powerful 7.92×57mm Mauser cartridge, introduced advanced infantry weapon features rapidly adopted in the Anglo-American Pattern 1914 Enfield/M1917 Enfield and the Japanese Arisaka Type 38/Type 99. 
Question : What year did Gewehr 98 come into use?
Example Output:
service entry