Original sentence: They then then run down a ramp which runs parallel to Lower Mosley Street, alongside the south-eastern side of the former train shed, before reaching street level where they operate as trams and head towards St Peter's Square
Edited sentence: They then run down a ramp which runs parallel to Lower Mosley Street, alongside the south-eastern side of the former train shed, before reaching street level where they operate as trams and head towards St Peter's Square