ipse cx="207" cy="-45" rx="27" ry="18"/>
<text text-anchor="middle" x="207" y="-41.12" font-family="Helvetica,sans-Serif" font-size="10.00">B_2_0</text>
</g>
<g class="m-edge">
<title>p0x563eef67e090&#45;&gt;p0x563eef67e4b0</title>
<path d="M142.05,-64.62C151.17,-61.82 161.73,-58.58 171.62,-55.55"/>
<polygon points="172.45,-58.65 180.98,-52.37 170.4,-51.96 172.45,-58.65"/>
</g>
<g class="m-node m-flat">
<title>p0x563eef67df88</title>
<ellipse cx="297" cy="-180" rx="27" ry="18"/>
<text text-anchor="middle" x