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 : Knights of Xentar is a humorous JRPG eroge (meaning it has erotic content). 
Question : To which series does Knights of Xentar belong?

Ex Output:
series


Ex Input:
Context : A Rum Collins is a cocktail based on the Tom Collins substituting a light rum for the gin. 
Question : Which is the basis of Rum Collins?

Ex Output:
based on


Ex Input:
Context : Einar Råberg represented Sweden as flag bearer in the opening ceremony of the 1924 Summer Olympics and as ``Chef de Mission'' in the 1948 Winter Olympics. 
Question : What year did Einar Råberg die?

Ex Output:

date of death