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 : NGC 2241 is an open cluster in the constellation Dorado. 
Question : What constellation does NGC 2241 belong to?

A: constellation
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Q: 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?

A: based on
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Q: Context : TAROM Flight 371 was an Airbus A310 that crashed near Baloteşti in Romania on 31 March 1995. 
Question : When did TAROM Flight 371 occur?

A:
point in time
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