Ask a question to a PDF

curl --request GET \
  --url https://api.scholarai.io/api/question

{
  "chunks": [
    {
      "chunk_num": 123,
      "chunk": "<string>",
      "img_mds": [
        "<string>"
      ],
      "pdf_url": "<string>"
    }
  ],
  "total_chunk_num": 123,
  "hint": "<string>"
}