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: "Black Forest, South Australia is bounded by the railway line that is a commuter line in what city?" whose answer is Adelaide.
Each document should contain about 30 words, and these documents should contain useful information.

Query: Black Forest, South Australia railway line city
Useful Output:

Doc 1: The present day suburb of Black Forest is in the Unley Council area. The 'Township of Black Forest' was a further subdivision of this section by W.M. Hardy, C.
Doc 2: cycling access to the adjoining communities, the future train station at Black Forest road and existing council recreational assets on McGrath road. O17 to
Doc 3: The GLNELG is the first light rail that goes to Emerson Railway Station in Black Forest. It stops nearby at 06:15. What time is the last light
Doc 4: Adelaide Railway Station. [North Terrace Railway Station 1948 ]  2.3 South Road def [Black Forest (1st) ap ]. 2.5 Glandore f [Burke
Doc 5: Black Forest Railway Station is a railway station in City of Unley, South Australia. Black Forest Railway Station is situated nearby to Clarence Park railway