"пӧрт-влакна" meaning in Eastern Mari

{
  "forms": [
    {
      "form": "pört-vlakna",
      "tags": [
        "romanization"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "mhr",
        "2": "noun form"
      },
      "expansion": "пӧрт-влакна • (pört-vlakna)",
      "name": "head"
    }
  ],
  "lang": "Eastern Mari",
  "lang_code": "mhr",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Eastern Mari entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        }
      ],
      "form_of": [
        {
          "extra": "the 1st person plural possessed form of пӧрт",
          "word": "пӧртна"
        }
      ],
      "glosses": [
        "nominative plural form of пӧртна, the 1st person plural possessed form of пӧрт"
      ],
      "id": "en-пӧрт-влакна-mhr-noun-2~tS1qoy",
      "links": [
        [
          "пӧртна",
          "пӧртна#Eastern Mari"
        ],
        [
          "пӧрт",
          "пӧрт#Eastern Mari"
        ]
      ],
      "tags": [
        "form-of",
        "nominative",
        "plural"
      ]
    }
  ],
  "word": "пӧрт-влакна"
}

{
  "forms": [
    {
      "form": "pört-vlakna",
      "tags": [
        "romanization"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "mhr",
        "2": "noun form"
      },
      "expansion": "пӧрт-влакна • (pört-vlakna)",
      "name": "head"
    }
  ],
  "lang": "Eastern Mari",
  "lang_code": "mhr",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "Eastern Mari entries with incorrect language header",
        "Eastern Mari non-lemma forms",
        "Eastern Mari noun forms",
        "Pages with 1 entry",
        "Pages with entries"
      ],
      "form_of": [
        {
          "extra": "the 1st person plural possessed form of пӧрт",
          "word": "пӧртна"
        }
      ],
      "glosses": [
        "nominative plural form of пӧртна, the 1st person plural possessed form of пӧрт"
      ],
      "links": [
        [
          "пӧртна",
          "пӧртна#Eastern Mari"
        ],
        [
          "пӧрт",
          "пӧрт#Eastern Mari"
        ]
      ],
      "tags": [
        "form-of",
        "nominative",
        "plural"
      ]
    }
  ],
  "word": "пӧрт-влакна"
}