We&#x27;d need to be talking about a concrete example to say with much specificity, but a node is basically a &quot;thing&quot; and an edge is a binary relationship between two things. A thing may have relationships with itself.<p>The precise &quot;information&quot; associated to them could be &quot;anything&quot;, but would be proscribed by the computation and&#x2F;or representation being disccussed <i>and</i> the graph in question.