Generate a more complex version of this sentence The Class 800 trains came into service on the Great Western Main Line on the 16 October 2017. Sepur kelas 800 mlebu layanan ing Great Western Main Line ing 16 Oktober 2017.
Mesthi, versi sing luwih rumit saka ukara kasebut yaiku "Kelas 800 sepur mlebu layanan ing Great Western Main Line tanggal 16 Oktober 2017, lan bakal dilayani ing East Coast Main Line wiwit Desember 2018. "