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.

Q: Context : For decades only Episode 3 of The Enemy of the World was known to have survived erasure, but the five missing episodes were announced as recovered by the BBC on 11 October 2013 along with four of the missing episodes of the following serial, The Web of Fear. 
Question : To which series does The Enemy of the World belong?

A: series
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Q: Context : Eusebius Mandyczewski was born in the Romanian village of Molodiya (then Austria-Hungary; now Ukraine, Hlyboka Raion) on 18 August 1857. 
Question : What was Eusebius Mandyczewski's career?

A: occupation
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Q: Context : Young woman with a letter and a messenger in an interior (1670) is an oil on canvas painting by the Dutch painter Pieter de Hooch, it is an example of Dutch Golden Age painting and is part of the collection of the Rijksmuseum. 
Question : What is the name of the place where Young woman with a letter and a messenger in an interior can be found?

A:
collection
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