"полка" meaning in Even

{
  "etymology_templates": [
    {
      "args": {
        "1": "eve",
        "2": "ru",
        "3": "полка"
      },
      "expansion": "Russian полка (polka)",
      "name": "bor"
    }
  ],
  "etymology_text": "Borrowed from Russian полка (polka)",
  "forms": [
    {
      "form": "polka",
      "tags": [
        "romanization"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "eve",
        "2": "noun"
      },
      "expansion": "полка (polka)",
      "name": "head"
    }
  ],
  "lang": "Even",
  "lang_code": "eve",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Even entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 3 entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "eve",
          "name": "Furniture",
          "orig": "eve:Furniture",
          "parents": [
            "Home",
            "Society",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        },
        {
          "_dis": "49 39 2 7 2 2",
          "kind": "other",
          "name": "Pages with 3 entries",
          "parents": [],
          "source": "w+disamb"
        }
      ],
      "glosses": [
        "shelf"
      ],
      "id": "en-полка-eve-noun-Pu-kLVIG",
      "links": [
        [
          "shelf",
          "shelf"
        ]
      ]
    }
  ],
  "word": "полка"
}

{
  "categories": [
    "Pages with 3 entries",
    "ru:Rail transportation"
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "eve",
        "2": "ru",
        "3": "полка"
      },
      "expansion": "Russian полка (polka)",
      "name": "bor"
    }
  ],
  "etymology_text": "Borrowed from Russian полка (polka)",
  "forms": [
    {
      "form": "polka",
      "tags": [
        "romanization"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "eve",
        "2": "noun"
      },
      "expansion": "полка (polka)",
      "name": "head"
    }
  ],
  "lang": "Even",
  "lang_code": "eve",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "Even entries with incorrect language header",
        "Even lemmas",
        "Even nouns",
        "Even terms borrowed from Russian",
        "Even terms derived from Russian",
        "Pages with 3 entries",
        "eve:Furniture"
      ],
      "glosses": [
        "shelf"
      ],
      "links": [
        [
          "shelf",
          "shelf"
        ]
      ]
    }
  ],
  "word": "полка"
}