TASK DEFINITION: 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.
PROBLEM: Context : Horror of Fang Rock was a late replacement for the scripts Terrance Dicks had originally submitted, a vampire-based tale entitled The Vampire Mutations, which was cancelled close to production as it was feared it could detract from the BBC's Count Dracula a high-profile adaptation of Bram Stoker's classic novel Dracula, which was due for transmission close to when the serial would have aired. 
Question : Which series was Horror of Fang Rock in?

SOLUTION: series

PROBLEM: Context : Herbert Lumsden was born in the United Kingdom at Clanfield, Oxfordshire, England on 8 April 1897, the son of John Lumsden. 
Question : What military branch was Herbert Lumsden associated with?

SOLUTION: military branch

PROBLEM: Context : Natalie Grandin (born 27 February 1981) is a retired professional tennis player from South Africa. 
Question : What city is Natalie Grandin from?

SOLUTION:
residence