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.

Input: Consider Input: Context : Hiram Burnham (1814 -- September 29, 1864) was an officer in the Union Army who commanded a regiment and then a brigade in the Eastern Theater of the American Civil War. 
Question : What military organization did Hiram Burnham belong to?

Output: military branch


Input: Consider Input: Context : Bored of the Rings is a parody of J. R. R. Tolkien's The Lord of the Rings. 
Question : Which is the basis of Bored of the Rings?

Output: based on


Input: Consider Input: Context : The first astronomer to record the Butterfly Cluster's existence was Giovanni Battista Hodierna in 1654. 
Question : What constellation is Butterfly Cluster a part of?


Output: constellation