Complex sentence: All South West Trains services from Waterloo and Southern and Gatwick Express trains from Victoria, pass through the station; the West London Line and East London Line services of London Overground has Clapham Junction as its one of its termini.
Split into simpler sentences: All South West Trains services from Waterloo pass through the station, as do Southern and Gatwick Express trains from Victoria. The West London Line and East London Line services of London Overground have Clapham Junction as its one of its termini.