Simplify the following text for a Grade 11 native English-speaking person.
Original: All services to Waterloo and many services to Victoria and Croydon stations pass through the junction ; these include South West Trains , Gatwick Express and Southern services .
Simplified: All services from Waterloo , by South West Trains , and many from Victoria , by Southern and Gatwick Express , use the station as do the West London Line services of London Overground and Southern .