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.

[Q]: 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?
[A]: military branch


[Q]: Context : Darren Tillis (born February 23, 1960) is a retired American professional basketball player who was selected by the Boston Celtics in the 1st round (23rd overall) of the 1982 NBA Draft. 
Question : Player Darren Tillis played for which team?
[A]: drafted by


[Q]: Context : A Rum Collins is a cocktail based on the Tom Collins substituting a light rum for the gin. 
Question : Which is the basis of Rum Collins?
[A]:
based on