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.

Ex Input:
Context : Antonio Reali was born on 31 March 1891 in Ozegna, the Kingdom of Italy. 
Question : In what war did Antonio Reali fight in?

Ex Output:
conflict


Ex Input:
Context : Designed to give users more control of their personal information when browsing, P3P was developed by the World Wide Web Consortium (W3C) and officially recommended on April 16, 2002. 
Question : Who set the standards for P3P?

Ex Output:
standards body


Ex Input:
Context : The AAI RQ-2 Pioneer is an unmanned aerial vehicle (UAV) that had been utilized by the United States Navy, Marine Corps, and Army, and deployed at sea and on land from 1986 until 2007. 
Question : What year did AAI RQ-2 Pioneer come into use?

Ex Output:

service entry