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.

[EX Q]: Context : ``The Way We Weren't'' is the twentieth episode of The Simpsons' fifteenth season. 
Question : What series is The Way We Weren't part of?
[EX A]: series

[EX Q]: Context : Sponsa de Libano (The Bride of Lebanon) is a painting by the Pre-Raphaelite artist Edward Burne-Jones dated 1891. 
Question : What is the name of the place where Sponsa de Libano can be found?
[EX A]: collection

[EX Q]: Context : Domingo Arrieta León was a Mexican general and statesman who fought in the Mexican Revolution of 1910. 
Question : In what war was Domingo Arrieta León in?
[EX A]:
conflict