Karl Johanslussen
...that the Karl Johanslussen is one of the locks and sluices between Lake Mälaren and the Baltic Sea that give rise to the name of the Slussen area of central Stockholm?
...that the <b id="mwCI0"><a class="mw-redirect" href="./Karl_Johanslussen" id="mwCI4" rel="mw:WikiLink" title="Karl Johanslussen">Karl Johanslussen</a></b> <i id="mwCI8">(pictured)</i> is one of the <a class="mw-redirect" href="./Lock_(water_transport)" id="mwCJA" rel="mw:WikiLink" title="Lock (water transport)">locks</a> and <a href="./Sluice" id="mwCJE" rel="mw:WikiLink" title="Sluice">sluices</a> between <a class="mw-redirect" href="./Lake_Mälaren" id="mwCJI" rel="mw:WikiLink" title="Lake Mälaren">Lake Mälaren</a> and the <a href="./Baltic_Sea" id="mwCJM" rel="mw:WikiLink" title="Baltic Sea">Baltic Sea</a> that give rise to the name of the <a class="mw-redirect" href="./Slussen" id="mwCJQ" rel="mw:WikiLink" title="Slussen">Slussen</a> area of central <a href="./Stockholm" id="mwCJU" rel="mw:WikiLink" title="Stockholm">Stockholm</a>?