土ど讃さん本ほん線せんじ字FuriganaMeanings1nounDosan Main LineserviceProper noun referring to the Dosan Main Line operated by the Kochi-Kagawa Railway (formerly JR Shikoku).土ど讃さん本ほん線せんは高こう知ち県けんと香か川がわ県けんを結むすぶ鉄てつ道どう路ろ線せんです。The Dosan Main Line is a railway line connecting Kochi and Kagawa prefectures.