instruction:
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.
question:
Context : In 1942, Blue Horses was purchased by the Walker Art Center in Minneapolis, Minnesota through The T. B. Walker Foundation and its Gilbert M. Walker Memorial Fund. 
Question : What is the name of the place where Blue Horses can be found?
answer:
collection


question:
Context : The Gewehr 98 (abbreviated G98, Gew 98 or M98) is a German bolt-action Mauser rifle firing cartridges from a 5-round internal clip-loaded magazine that was the German service rifle from 1898 to 1935, when it was replaced by the Karabiner 98k. 
Question : What year did Gewehr 98 come into use?
answer:
service entry


question:
Context : Leônidas da Silva (Portuguese pronunciation: (leˈõnidɐz dɐ ˈsiwvɐ); 6 September 1913, Rio de Janeiro -- 24 January 2004, Cotia) was an association footballer and commentator. 
Question : What disease was a factor in the death of Leônidas?
answer:

medical condition