Generate a correct and concise answer for the question based on the words in the context.
One example: Context : Isaac Nicola Romero (1916 in Havana, Cuba -- 1997) was a prominent Cuban guitarist and one of the founders of the modern Cuban Guitar School.
Question : What was Isaac Nicola's city of birth?
Solution is here: Havana
Explanation: According to context Issac Nicola's city of birth is Havana. Hence this is a correct output.

Now, solve this: Context : Wagon Train is an American Western series that ran on NBC 1957--62 and then on ABC 1962--65, although the network also aired daytime repeats, as Major Adams, Trailmaster and Trailmaster (post-1961 episodes without original series lead Ward Bond), from January 1963 to September 1965.
Question : What was the original network for Wagon Train?
Solution:
NBC