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.

Context : Irene Riano (1871-1940) was a British stage actress. 
Question : What was the date of death of Irene Riano?
date of death

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?
based on

Context : Vice Admiral Arthur Kemmis Betty DSO (1877 -- 1961) was a senior Royal Navy officer. 
Question : What college did Arthur Kemmis Betty go to?

educated at