e/Sydney underground railways

Information
has gloss	eng: Sydney, Australia has several sections of underground railway. These sections of railway are extensions of suburban main line services and are not a completely segregated true metro system. The underground sections, especially the City Circle, typically have frequent services. The railways are run by CityRail, an agency of the government of New South Wales.
lexicalization	eng: Sydney underground railways
instance of	(noun) an urban public transit system using underground or elevated trains mass rapid transit, rapid transit

Media
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