TASK DEFINITION: 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.
PROBLEM: Context : Abell 754 is a galaxy cluster in the constellation Hydra that was formed from the collision of two smaller clusters.
Question : Which was the constellation for Abell 754?

SOLUTION: constellation

PROBLEM: Context : Andrew Snape Douglas was born in Edinburgh on 8 October 1761, the son of Dr. William Douglas, a medical doctor of Springfield, and Lydia Hamond, daughter of a London merchant and shipowner.
Question : What military branch did Andrew Snape Douglas serve?

SOLUTION: military branch

PROBLEM: Context : Ynigo Ortiz de Retez was born in Retes de Llanteno (Alava, Spain) in a non-titled nobility family (hidalgos) in the first decade of the 16th-century.
Question : What kind of occupation does Ynigo Ortiz de Retez have?

SOLUTION:
occupation