Generate a more complex version of this sentence The Class 800 trains came into service on the Great Western Main Line on the 16 Oktober 2017. Karéta api Kelas 800 asup kana jasa di Great Western Main Line dina tanggal 16 Oktober 2017.
Tangtu, versi anu leuwih kompleks tina kalimah nyaéta "Kelas 800 karéta asup kana jasa dina Great Western Main Line dina 16 Oktober 2017, sarta bakal aya dina jasa dina East Coast Main Line ti Désémber 2018. "