Complex sentence: Wavertree Playground, also known locally as "The Mystery" was one of the first purpose-built public playgrounds in the UK-it is based in the Wavertree area of Liverpool, England.
Split into simpler sentences: Wavertree Playground, also known locally as "The Mystery" was one of the first purpose-built public playgrounds in the UK. It is based in the Wavertree area of Liverpool, England.