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.
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Question: Context : Oliver Otis Howard (November 8, 1830 -- October 26, 1909) was a career United States Army officer and a Union general in the American Civil War. 
Question : In which war/battle did Oliver Otis Howard fight?

Answer: conflict


Question: Context : Edna Andrade (January 25, 1917 Portsmouth, Virginia - April 17, 2008 Philadelphia) was an American abstract artist. 
Question : Was Edna Andrade male or female?

Answer: sex or gender


Question: Context : On 20 June 2008, the NetBSD Foundation announced a transition to the two clause BSD license, citing concerns with UCB support of clause 3 and industry applicability of clause 4. 
Question : Which is the basis of NetBSD?

Answer:
based on