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 Input:
Context : Æthelswith (c. 838-888) was the only known daughter of King Æthelwulf of Wessex. 
Question : What is Æthelswith's spouse's name?

Ex Output:
spouse


Ex Input:
Context : Due to the fact that Mainz Cathedral lay partially in ruins St. Peter's was chosen for the inauguration of bishop Joseph Ludwig Colmar in 1803. 
Question : When did Joseph Ludwig Colmar die?

Ex Output:
date of death


Ex Input:
Context : By this time, English-speaking fans had been referring to the film as The Mystery of Mamo, to distinguish it from the two TV series and The Castle of Cagliostro. 
Question : Which series is The Mystery of Mamo a part of?

Ex Output:

series