Complex sentence: Using most of the trackbed of the former Oldham Loop Line which closed in 2009, the line was re-opened in a modified form as a tram line between 2012 and 2014 as part of phase three of the system's expansion.
Split into simpler sentences: Using most of the trackbed of the former Oldham Loop Line which closed in 2009. The line was re-opened in a modified form as a tram line between 2012 and 2014 as part of phase three of the system's expansion.