instruction:
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.
question:
Context : What later became known as the Whirlpool Galaxy was discovered on October 13, 1773 by Charles Messier while hunting for objects that could confuse comet hunters, and was designated in Messier's catalogue as M51. 
Question : The star Whirlpool Galaxy is part of the constellation known as what?
answer:
constellation


question:
Context : Rudolf Gerhardt (26 March 1896 -- 10 November 1964) was a highly decorated Oberst in the Wehrmacht during World War II. He was also a recipient of the Knight's Cross of the Iron Cross. 
Question : What award was received by Rudolf Gerhardt?
answer:
award received


question:
Context : Julio César Arana del Águila, (1864--1952) was a Peruvian entrepreneur and politician. 
Question : What date did Julio César Arana die on?
answer:

date of death