Simplify the following text for a Grade 10 native English-speaking person.
Original: It is owned by the South Yorkshire Passenger Transport Executive ( SYPTE ) , who own the infrastructure , and Stagecoach who operate and maintain the vehicles .
Simplified: The track and connected items are owned by South Yorkshire Passenger Transport Executive ( SYPTE ) . Stagecoach Group run and look after the vehicles , through their Stagecoach Supertram branded company .