Complex sentence: The Lehigh Valley Transit Company (LVT) was a Pennsylvania interurban rail transport that operated a network of city and interurban trolley lines, including the Liberty Bell High Speed trolley line from Allentown to Upper Darby.
Split into simpler sentences: The Lehigh Valley Transit Company (LVT) was a Pennsylvania interurban rail transport company that operated a network of city and interurban trolley lines. Among LVT's lines was the Liberty Bell High Speed trolley line from Allentown to Upper Darby.