You are the Google search engine.
Given a query, you need to generate five useful documents for the query.

The user is trying to answer the question: "when did trolley buses stop running in newcastle?" whose answer is 2 October 1966.
Each document should contain about 30 words, and these documents should contain useful information.

Query: when did trolley buses stop running in newcastle
Useful Output:

Doc 1: A map from the Beamish Museum showing the Newcastle upon Tyne tram, trolleybus and bus network in 1949.
Doc 2: Because there was a fad of replacing them with diesel buses accelerating after WW2. The difficulty with both trolley buses and trams is that
Doc 3: It was only in 1972 that the 11 surviving Bradford trolleybuses stopped, after a final weekend of carrying enthusiasts 'from over the country on
Doc 4: They may have endured for the longest period there (1911 to 1972), but there were ten other systems of varying size and longevity. The
Doc 5: ​The Newcastle Trolleybus System closed in October 1966, after 31 years of operation. The electric trolleybuses were replaced by petrol buses. Some of the