Complex sentence: The Pink Line was the first line to be fully equipped with 5000-series cars in June 2012, followed by the Green Line in May 2013, the Yellow Line in March 2014, the Purple Line in March 2015 and the Red Line in November 2015.
Split into simpler sentences: The Pink Line was the first line to be fully equipped with 5000-series cars in June 2012, followed by the Green Line in May 2013, the Yellow Line in March 2014, and the Purple Line in March 2015. The Red Line is expected to be fully equipped with 5000-series cars in November 2015.