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 : Messier 99 was discovered by Pierre Méchain on March 17, 1781 along . 
Question : What constellation is Messier 99 in?

A: constellation
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Q: Context : Born Robert Alton Hart in Bennington, Vermont, Alton studied dance with Ralph McKernan in Springfield, Massachusetts and spent his summers in New York studying with Bert French and Mikhail Mordkin, formerly of the Bolshoi Ballet and Sergey Diaghilev's Ballets Russes. 
Question : What kind of  occupation does Robert Alton have?

A: occupation
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Q: Context : Only When I Dance is a 2009 documentary film directed by Beadie Finzi. 
Question : Which place does Only When I Dance exist in?

A:
narrative location
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