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 : Prom-asaurus attracted 6.67 million American viewers during its initial airing and received a 2.7/8 Nielsen rating/share in the 18--49 demographic, up significantly from the 2.5/8 rating/share and 6.01 million viewers of the previous episode, ``Choke'', which was broadcast on May 1, 2012. 
Question : What is the series that Prom-asaurus is a part of?
series

Context : The Paveway IV entered service with the Royal Navy in 2008. 
Question : Which was the official year for the approval of Paveway IV?
service entry

Context : Marilyn Imrie has worked in drama and broadcasting in Scotland and England for over thirty years as a producer and director, for BBC, ITV and the independent companies Absolutely, Bona Broadcasting, CBL, CIM, Kindle and Sweet Talk. 
Question : What is Marilyn Imrie's spouse's name?

spouse