Complex sentence: The Yarra Valley Tourist railway originally leased the entire line, however they discontinued their lease on the section from Lilydale to Yarra Glen, because of the bad condition of the bridges in that section.
Split into simpler sentences: The Yarra Valley Tourist railway originally leased the entire line. However, they discontinued their lease on the section from Lilydale to Yarra Glen, because of the bad condition of the bridges in that section.