{
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  "body": "\n## Summary\n\nOne of the two vertices joined by a given edge, or one of the first or last vertex of a walk, trail or path. The first endpoint of a given directed edge is called the *tail* and the second endpoint is called the *head*.\n",
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    "name": "Endpoint",
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      {
        "locator": "Glossary of graph theory, section E",
        "mention": "wikipedia://en/325802#KIDS",
        "note": "adopted",
        "sections": [
          "Summary"
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        "wikipedia": "en:325802@r1373839425"
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    "tag": "CGH2BKTC7V"
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  "markdown": "https://math2.tamnd.com/node/CGH2BKTC7V.md",
  "msc": null,
  "name": "Endpoint",
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  "source": "https://github.com/tamnd/math2/blob/main/nodes/CGH/CGH2BKTC7V.md",
  "status": null,
  "tag": "CGH2BKTC7V",
  "uri": "m2://CGH2BKTC7V",
  "url": "https://math2.tamnd.com/wiki/endpoint/",
  "writing": {
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    "next": [
      {
        "what": "edge defines in",
        "note": "at least one definition",
        "have": 0,
        "want": 1
      },
      {
        "what": "edge instance_of in",
        "note": "at least two examples",
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      },
      {
        "what": "edge not_instance_of in",
        "note": "at least one non-example",
        "have": 0,
        "want": 1
      },
      {
        "what": "edge specializes both",
        "note": "the more general notions and the special cases",
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        "want": 1
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