<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN"
 "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd">
<!-- Generated by graphviz version 2.49.3 (20211023.0002)
 -->
<!-- Title: G Pages: 1 -->
<svg width="231pt" height="334pt"
 viewBox="0.00 0.00 231.00 334.00" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
<g id="graph0" class="graph" transform="scale(1 1) rotate(0) translate(4 330)">
<title>G</title>
<polygon fill="white" stroke="transparent" points="-4,4 -4,-330 227,-330 227,4 -4,4"/>
<g id="clust3" class="cluster">
<title>clusterB</title>
<polygon fill="none" stroke="black" points="0.08,-0.37 0.08,-101.37 108.08,-101.37 108.08,-0.37 0.08,-0.37"/>
</g>
<g id="clust1" class="cluster">
<title>clusterA</title>
<polygon fill="none" stroke="black" points="10.71,-112.01 10.71,-326.01 201.71,-326.01 201.71,-112.01 10.71,-112.01"/>
</g>
<g id="clust2" class="cluster">
<title>clusterC</title>
<polygon fill="none" stroke="black" points="118.51,-219.67 118.51,-317.67 193.51,-317.67 193.51,-219.67 118.51,-219.67"/>
</g>
<!-- e -->
<g id="node1" class="node">
<title>e</title>
<ellipse fill="none" stroke="black" cx="195.99" cy="-45.1" rx="27" ry="18"/>
<text text-anchor="middle" x="195.99" y="-41.4" font-family="Times New Roman,serif" font-size="14.00">e</text>
</g>
<!-- __0:clusterB -->
<!-- e&#45;&#45;__0:clusterB -->
<g id="edge7" class="edge">
<title>e&#45;&#45;__0:clusterB</title>
<path fill="none" stroke="black" d="M168.96,-46.2C151.83,-46.9 129.07,-47.82 108.33,-48.66"/>
</g>
<!-- a -->
<g id="node2" class="node">
<title>a</title>
<ellipse fill="none" stroke="black" cx="45.27" cy="-138.38" rx="27" ry="18"/>
<text text-anchor="middle" x="45.27" y="-134.68" font-family="Times New Roman,serif" font-size="14.00">a</text>
</g>
<!-- b -->
<g id="node3" class="node">
<title>b</title>
<ellipse fill="none" stroke="black" cx="81.74" cy="-184.94" rx="27" ry="18"/>
<text text-anchor="middle" x="81.74" y="-181.24" font-family="Times New Roman,serif" font-size="14.00">b</text>
</g>
<!-- a&#45;&#45;b -->
<g id="edge1" class="edge">
<title>a&#45;&#45;b</title>
<path fill="none" stroke="black" d="M57.83,-154.41C61.45,-159.03 65.41,-164.09 69.05,-168.73"/>
</g>
<!-- C -->
<g id="node4" class="node">
<title>C</title>
<ellipse fill="none" stroke="black" cx="158.61" cy="-245.74" rx="27" ry="18"/>
<text text-anchor="middle" x="158.61" y="-242.04" font-family="Times New Roman,serif" font-size="14.00">C</text>
</g>
<!-- D -->
<g id="node5" class="node">
<title>D</title>
<ellipse fill="none" stroke="black" cx="153.15" cy="-291.94" rx="27" ry="18"/>
<text text-anchor="middle" x="153.15" y="-288.24" font-family="Times New Roman,serif" font-size="14.00">D</text>
</g>
<!-- C&#45;&#45;D -->
<g id="edge2" class="edge">
<title>C&#45;&#45;D</title>
<path fill="none" stroke="black" d="M156.48,-263.73C156.09,-267.08 155.68,-270.57 155.28,-273.92"/>
</g>
<!-- d -->
<g id="node6" class="node">
<title>d</title>
<ellipse fill="none" stroke="black" cx="72.58" cy="-75.19" rx="27" ry="18"/>
<text text-anchor="middle" x="72.58" y="-71.49" font-family="Times New Roman,serif" font-size="14.00">d</text>
</g>
<!-- d&#45;&#45;D -->
<g id="edge4" class="edge">
<title>d&#45;&#45;D</title>
<path fill="none" stroke="black" d="M79.18,-92.93C94.32,-133.67 131.46,-233.57 146.58,-274.26"/>
</g>
<!-- f -->
<g id="node7" class="node">
<title>f</title>
<ellipse fill="none" stroke="black" cx="34.74" cy="-26.76" rx="27" ry="18"/>
<text text-anchor="middle" x="34.74" y="-23.06" font-family="Times New Roman,serif" font-size="14.00">f</text>
</g>
<!-- d&#45;&#45;f -->
<g id="edge3" class="edge">
<title>d&#45;&#45;f</title>
<path fill="none" stroke="black" d="M59.98,-59.06C55.94,-53.89 51.47,-48.16 47.42,-42.98"/>
</g>
<!-- __1:clusterC -->
<!-- __2:clusterB -->
<!-- __1:clusterC&#45;&#45;__2:clusterB -->
<g id="edge8" class="edge">
<title>__1:clusterC&#45;&#45;__2:clusterB</title>
<path fill="none" stroke="black" d="M133.01,-219.52C116.57,-184.39 94.5,-137.24 77.89,-101.73"/>
</g>
</g>
</svg>