Lake Karla
...that Lake Karla is the only lake in the plain of Thessaly?
...that <b id="mwEEk"><a href="./Lake_Karla" id="mwEEo" rel="mw:WikiLink" title="Lake Karla">Lake Karla</a></b> is the only <a href="./Lake" id="mwEEs" rel="mw:WikiLink" title="Lake">lake</a> in the <a class="mw-redirect" href="./Plain_of_Thessaly" id="mwEEw" rel="mw:WikiLink" title="Plain of Thessaly">plain of Thessaly</a>?