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 : Guy Melfort Baldwin was born 22 March 1865 at Penang, to Colonel A T and Margaret Baldwin. 
Question : Which entity was Guy Melfort Baldwin a part of?

Output: military branch


Input: Consider Input: Context : NGC 2419 bears the nickname ``the Intergalactic Wanderer,'' which was bestowed when it was erroneously thought not to be in orbit around the Milky Way. 
Question : The star/galaxy NGC 2419 is in what constellation?

Output: constellation


Input: Consider Input: Context : The BMP-3 is designed and produced by the Kurganmashzavod (``Kurgan Machine Building Plant'') some variants however are built by the Rubtsovsk Machine Building Plant (RMZ), for example the BRM-3K. 
Question : What year was the service entry date for BMP-3?


Output: service entry