"\u016Cllyul Line" . . "\u016Cnnyul Line" . . "Operational" . "\u016Cnnyul" . . . . "117800.0" . . "18" . "1971" . . "Unnyul Line" . . "Sahae Line" . . "''former Changy\u014Fn Line''" . . . "Unnyul Line" . "1920" . . . . . "Changy\u014Fn Line" . "Jangyeon Line" .