"sargga" meaning in Tocharian B

{
  "etymology_templates": [
    {
      "args": {
        "1": "txb",
        "2": "sa",
        "3": "सर्ग"
      },
      "expansion": "Learned borrowing from Sanskrit सर्ग (sarga)",
      "name": "lbor"
    }
  ],
  "etymology_text": "Learned borrowing from Sanskrit सर्ग (sarga).",
  "head_templates": [
    {
      "args": {
        "1": "txb",
        "2": "noun"
      },
      "expansion": "sargga",
      "name": "head"
    }
  ],
  "lang": "Tocharian B",
  "lang_code": "txb",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Tocharian B entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "txb",
          "name": "Literature",
          "orig": "txb:Literature",
          "parents": [
            "Culture",
            "Entertainment",
            "Writing",
            "Society",
            "Human behaviour",
            "Language",
            "All topics",
            "Human",
            "Communication",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "chapter (of a book)"
      ],
      "id": "en-sargga-txb-noun-iUdxAwti",
      "links": [
        [
          "chapter",
          "chapter"
        ]
      ]
    }
  ],
  "word": "sargga"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "txb",
        "2": "sa",
        "3": "सर्ग"
      },
      "expansion": "Learned borrowing from Sanskrit सर्ग (sarga)",
      "name": "lbor"
    }
  ],
  "etymology_text": "Learned borrowing from Sanskrit सर्ग (sarga).",
  "head_templates": [
    {
      "args": {
        "1": "txb",
        "2": "noun"
      },
      "expansion": "sargga",
      "name": "head"
    }
  ],
  "lang": "Tocharian B",
  "lang_code": "txb",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "Tocharian B entries with incorrect language header",
        "Tocharian B learned borrowings from Sanskrit",
        "Tocharian B lemmas",
        "Tocharian B nouns",
        "Tocharian B terms borrowed from Sanskrit",
        "Tocharian B terms derived from Sanskrit",
        "Tocharian B terms spelled with G",
        "txb:Literature"
      ],
      "glosses": [
        "chapter (of a book)"
      ],
      "links": [
        [
          "chapter",
          "chapter"
        ]
      ]
    }
  ],
  "word": "sargga"
}