"wa" meaning in Sango

{
  "categories": [
    {
      "kind": "other",
      "name": "Adjectifs interrogatifs en sango",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Sango",
      "orig": "sango",
      "parents": [],
      "source": "w"
    }
  ],
  "derived": [
    {
      "word": "lo sô wa"
    },
    {
      "word": "na ndo wa"
    },
    {
      "word": "zo wa"
    }
  ],
  "lang": "Sango",
  "lang_code": "sg",
  "pos": "adj",
  "pos_title": "Adjectif interrogatif",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Exemples en sango",
          "parents": [],
          "source": "w"
        }
      ],
      "examples": [
        {
          "text": "na ndo wa?",
          "translation": "à quel endroit?"
        }
      ],
      "glosses": [
        "Quel. Interroge sur l’identité du nom associé"
      ],
      "id": "fr-wa-sg-adj-52sdPyzb"
    }
  ],
  "tags": [
    "interrogative"
  ],
  "word": "wa"
}

{
  "categories": [
    "Adjectifs interrogatifs en sango",
    "sango"
  ],
  "derived": [
    {
      "word": "lo sô wa"
    },
    {
      "word": "na ndo wa"
    },
    {
      "word": "zo wa"
    }
  ],
  "lang": "Sango",
  "lang_code": "sg",
  "pos": "adj",
  "pos_title": "Adjectif interrogatif",
  "senses": [
    {
      "categories": [
        "Exemples en sango"
      ],
      "examples": [
        {
          "text": "na ndo wa?",
          "translation": "à quel endroit?"
        }
      ],
      "glosses": [
        "Quel. Interroge sur l’identité du nom associé"
      ]
    }
  ],
  "tags": [
    "interrogative"
  ],
  "word": "wa"
}