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 : The first astronomer to record the Butterfly Cluster's existence was Giovanni Battista Hodierna in 1654. 
Question : What constellation is home to Butterfly Cluster?

Ex Output:
constellation


Ex Input:
Context : Ana Lovrin (Croatian pronunciation: (âna lǒːʋrin) or (ǎːna-); born 2 December 1953), is a Croatian politician. 
Question : What kind of  occupation does Ana Lovrin have?

Ex Output:
occupation


Ex Input:
Context : John Anthony Walker, Jr. (July 28, 1937 -- August 28, 2014) was a United States Navy Chief Warrant Officer and communications specialist convicted of spying for the Soviet Union from 1968 to 1985. 
Question : What armed force was John Anthony Walker in?

Ex Output:

military branch