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 : The title The World Is Not Enough is an English translation of the Latin phrase Orbis non sufficit, which in real life was the motto of Sir Thomas Bond. 
Question : What series is the episode The World Is Not Enough part of?

A: series
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Q: Context : Having suffered for at least a year, Mary Tighe endured a serious attack of tuberculosis in 1805. 
Question : What was Mary Tighe's medical condition near the end of his life?

A:
medical condition
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