Question:  Doncaster iPort is connected to the rail network through the main line that is what length?
Sentence (from "JR Kobe Line"): The JR Kobe Line (JR神戸線 , JR Kōbe sen ) is the nickname of portions of the Tokaido Main Line and the Sanyo Main Line, between Osaka Station in Osaka, Osaka Prefecture and Himeji Station in Himeji, Hyōgo Prefecture.
Relevant evidence: No