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 : ``How a Bill Becomes a Law'' is the third episode of the fifth season of the American comedy television series Parks and Recreation, and the 71st overall episode of the series. 
Question : Which series is How a Bill Becomes a Law apart of?
[A]: series


[Q]: 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?
[A]: series


[Q]: Context : The BMP-3 is designed and produced by the Kurganmashzavod (``Kurgan Machine Building Plant'') some variants however are built by the Rubtsovsk Machine Building Plant (RMZ), for example the BRM-3K. 
Question : What was the year BMP-3 entered service?
[A]:
service entry