curl --request POST \
  --url https://api.adapter.com/v1/knowledge/query \
  --header 'Content-Type: application/json' \
  --data '
{
  "question": "<string>",
  "sources": [
    "<string>"
  ]
}
'

{
  "answer": "<string>",
  "citations": [
    {
      "excerpt": "<string>",
      "source_id": "<string>",
      "source_type": "<string>",
      "title": "<string>"
    }
  ],
  "confidence": 123
}