"pro qui" meaning in Ido

{
  "head_templates": [
    {
      "args": {
        "1": "io",
        "2": "adverb form"
      },
      "expansion": "pro qui",
      "name": "head"
    }
  ],
  "lang": "Ido",
  "lang_code": "io",
  "pos": "adv",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Ido correlatives",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Ido 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"
        }
      ],
      "examples": [
        {
          "english": "Why is the sky blue? (indicating that there are multiple answers) (direct question)",
          "text": "Pro qui esas la cielo blua?",
          "type": "example"
        },
        {
          "english": "You helped me because why? (indicating that there are multiple answers) (indirect question)",
          "text": "Vu helpis me pro qui?",
          "type": "example"
        }
      ],
      "form_of": [
        {
          "word": "pro quo"
        }
      ],
      "glosses": [
        "plural of pro quo"
      ],
      "id": "en-pro_qui-io-adv-qxztROaI",
      "links": [
        [
          "pro quo",
          "pro quo#Ido"
        ]
      ],
      "tags": [
        "form-of",
        "plural"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/pro kwi/"
    },
    {
      "ipa": "/pɾɔ kwi/"
    }
  ],
  "word": "pro qui"
}

{
  "head_templates": [
    {
      "args": {
        "1": "io",
        "2": "adverb form"
      },
      "expansion": "pro qui",
      "name": "head"
    }
  ],
  "lang": "Ido",
  "lang_code": "io",
  "pos": "adv",
  "senses": [
    {
      "categories": [
        "Ido adverb forms",
        "Ido correlatives",
        "Ido entries with incorrect language header",
        "Ido interrogative adverbs",
        "Ido non-lemma forms",
        "Ido terms with usage examples",
        "Pages with 1 entry",
        "Pages with entries"
      ],
      "examples": [
        {
          "english": "Why is the sky blue? (indicating that there are multiple answers) (direct question)",
          "text": "Pro qui esas la cielo blua?",
          "type": "example"
        },
        {
          "english": "You helped me because why? (indicating that there are multiple answers) (indirect question)",
          "text": "Vu helpis me pro qui?",
          "type": "example"
        }
      ],
      "form_of": [
        {
          "word": "pro quo"
        }
      ],
      "glosses": [
        "plural of pro quo"
      ],
      "links": [
        [
          "pro quo",
          "pro quo#Ido"
        ]
      ],
      "tags": [
        "form-of",
        "plural"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/pro kwi/"
    },
    {
      "ipa": "/pɾɔ kwi/"
    }
  ],
  "word": "pro qui"
}