Complex sentence: Its 31 stations along over 31 kilometers (19 mi) of mostly elevated track form two lines: the original LRT Line 1 (LRT-1) or Yellow Line, and the more modern MRT Line 2 (LRT-2), or Purple Line.
Split into simpler sentences: Its 31 stations along over 31 kilometers (19 mi) of mostly elevated track form two lines. The network consists of two lines: the original LRT Line 1 (LRT-1) or Yellow Line, and the more modern MRT Line 2 (MRT-2), or Purple Line.