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 : Turkish Airlines Flight 1951 (also known as the Poldercrash) was a passenger flight that crashed during landing at the Amsterdam Schiphol Airport, Netherlands, on 25 February 2009, resulting in the death of nine passengers and crew including all three pilots. 
Question : On what date did Turkish Airlines Flight 1951 occur?

Ex Output:
point in time


Ex Input:
Context : ``At the request of Knox Burger, then at Fawcett, I attempted a series character. I took three shots at it to get one book with a character I could stay with. That was in 1964. Once I had the first McGee book, The Deep Blue Good-by, they held it up until I had finished two more, Nightmare in Pink and A Purple Place for Dying, then released one a month for three months. That launched the series.'' 
Question : Which show does The Deep Blue Good-by appear on?

Ex Output:
series


Ex Input:
Context : Abe Burrows died from Alzheimer's disease in his native New York City. 
Question : What diseased did Abe Burrows struggle with?

Ex Output:

medical condition