ass="fc">&nbsp;        Vertex b1 = this.sqlgGraph.addVertex(T.label, &quot;B&quot;, &quot;name&quot;, &quot;b1&quot;);</b>
<b class="fc">&nbsp;        Vertex c1 = this.sqlgGraph.addVertex(T.label, &quot;C&quot;, &quot;name&quot;, &quot;c1&quot;);</b>
<b class="fc">&nbsp;        Vertex d1 = this.sqlgGraph.addVertex(T.label, &quot;D&quot;, &quot;name&quot;, &quot;d1&quot;);</b>
<b class="fc">&nbsp;        a1.addEdge(&quot;ab&quot;, b1);</b>
<b class="fc">&nbsp;        b1.addEdge(&quot;bc&quot;, c1);</b>
<b cl