curl --request DELETE \
  --url https://api.deepl.com/v3/spoken-terms/{spoken_terms_id} \
  --header 'Authorization: <api-key>'

{
  "message": "Bad request"
}

{
  "message": "<string>",
  "code": "invalid_content_type"
}

{
  "message": "Forbidden. Authorization failed or feature not available for your plan."
}

{
  "message": "<string>",
  "code": "invalid_content_type"
}

{
  "message": "<string>",
  "code": "invalid_content_type"
}