sentences:  The nine sets of Siemens Desiro II trains were built in Krefeld, Germany.Four Express trains—four cars, red colour—were used for the two separate express service between Makkasan and Phaya Thai and Suvarnabhumi 
  Airport.The fourth car is a baggage car with no passenger seating The other five City Line trains—three cars, blue colour—are used for commuter City Line service stopping at all eight stations on the Airport Line.