Mauritania Railway
...that the Mauritania Railway transports iron ore on trains up to three kilometers long?
...that the <b id="mwAus"><a href="./Mauritania_Railway" id="mwAuw" rel="mw:WikiLink" title="Mauritania Railway">Mauritania Railway</a></b> transports <a href="./Iron_ore" id="mwAu0" rel="mw:WikiLink" title="Iron ore">iron ore</a> on <a href="./Train" id="mwAu4" rel="mw:WikiLink" title="Train">trains</a> up to three kilometers long?