Complex sentence: The Marston Vale Line is the passenger carrying remnant of the Oxford to Cambridge line; the line beyond Bletchley through Winslow to Bicester is goods-only and the station at Winslow is closed at present.
Split into simpler sentences: The Marston Vale Line is the passenger carrying remnant of the Oxford to Cambridge line. The line beyond Bletchley through Winslow to Bicester is goods-only and the station at Winslow is closed at present.