;&#45;X4:w</title>
<path fill="none" stroke="#000000" stroke-width="2" d="M533.25,-255.88C598.25,-256.09 614.05,-264.09 677.25,-263.88"/>
<path fill="none" stroke="#000000" stroke-width="2" d="M533.25,-257.88C597.35,-257.88 613.15,-265.88 677.25,-265.88"/>
<path fill="none" stroke="#000000" stroke-width="2" d="M533.25,-259.87C596.45,-259.66 612.25,-267.66 677.25,-267.87"/>
</g>
<!-- W3&#45;&#45;X4 -->
<g id="edge20" class="edge">
<title>W3:e&#45;&#45;X4:w</title>
<path fill="none" stroke="#000000" stroke-wi