Generate a correct and concise answer for the question based on the words in the context.

Ex Input:
Context : ``Ron and Tammy'' received highly positive reviews and is widely considered one of the best Parks and Recreation episodes, with many commentators praising Offerman's performance. 
Question : What series is Ron and Tammy in?

Ex Output:
Parks and Recreation


Ex Input:
Context : The 18th Mounted Brigade previously known as the 2/1st Yorkshire Mounted Brigade was a 2nd Line yeomanry brigade of the British Army during the First World War. 
Question : To which branch did 18th Mounted Brigade belong?

Ex Output:
British Army


Ex Input:
Context : The LB&SCR Belgravia class, were 2-4-0 passenger locomotives designed by William Stroudley of the London Brighton and South Coast Railway (LB&SCR) in 1872 for secondary passenger duties. 
Question : What year did LB&SCR Belgravia class come into use?

Ex Output:

1872