"wa't" meaning in West Frisian

{
  "etymology_text": "Contraction of wa dat (“who that”).",
  "head_templates": [
    {
      "args": {
        "1": "fy",
        "2": "pronoun",
        "cat2": "relative pronouns"
      },
      "expansion": "wa't",
      "name": "head"
    }
  ],
  "lang": "West Frisian",
  "lang_code": "fy",
  "pos": "pron",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "West Frisian entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "West Frisian pronouns",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "West Frisian relative pronouns",
          "parents": [
            "Relative pronouns",
            "Pronouns",
            "Relative pro-forms",
            "Lemmas",
            "Pro-forms",
            "Terms by semantic function"
          ],
          "source": "w"
        }
      ],
      "examples": [
        {
          "english": "He is a person who I know.",
          "text": "Hy is in minsk wa't ik ken.",
          "type": "example"
        }
      ],
      "glosses": [
        "who (relative)"
      ],
      "id": "en-wa't-fy-pron-9JrZR3lp",
      "links": [
        [
          "who",
          "who"
        ]
      ],
      "synonyms": [
        {
          "word": "dy't"
        }
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/vaːt/"
    }
  ],
  "word": "wa't"
}

{
  "etymology_text": "Contraction of wa dat (“who that”).",
  "head_templates": [
    {
      "args": {
        "1": "fy",
        "2": "pronoun",
        "cat2": "relative pronouns"
      },
      "expansion": "wa't",
      "name": "head"
    }
  ],
  "lang": "West Frisian",
  "lang_code": "fy",
  "pos": "pron",
  "senses": [
    {
      "categories": [
        "Pages with 1 entry",
        "Pages with entries",
        "West Frisian entries with incorrect language header",
        "West Frisian lemmas",
        "West Frisian pronouns",
        "West Frisian relative pronouns",
        "West Frisian terms with usage examples"
      ],
      "examples": [
        {
          "english": "He is a person who I know.",
          "text": "Hy is in minsk wa't ik ken.",
          "type": "example"
        }
      ],
      "glosses": [
        "who (relative)"
      ],
      "links": [
        [
          "who",
          "who"
        ]
      ],
      "synonyms": [
        {
          "word": "dy't"
        }
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/vaːt/"
    }
  ],
  "word": "wa't"
}