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 : Sang Penari touches on the history of communism in Indonesia, focusing on the nation's communist party spreading its ideology and the government's purge of the Communist Party's members from 1965--1966, which is thought to have killed several hundred thousand. 
Question : The Sang Penari is based upon what?
[A]: based on


[Q]: Context : In 1935, Duncan Sandys married Diana Churchill, daughter of the future prime minister Winston Churchill. 
Question : What is Duncan Sandys's spouse's name?
[A]: spouse


[Q]: Context : Henry Breault (14 October 1900 -- 5 December 1941) was a United States Navy submarine sailor who received the Medal of Honor for his actions while serving aboard the submarine USS O-5 (SS-66). 
Question : What armed force did Henry Breault serve in?
[A]:
military branch