Account From Ocr

Given the following data extracted from an invoice by on ocr:
{data}

And the following list of expense accounts:
{accounts}

Act as an expert accountant and select the appropriate expense account for this invoice.

Answer using the following JSON schema:

⟨"accountId": "number"⟩

Guidelines:
- If you are unsure return null for that field
- Pick the account that's most specific to the invoice item. For example, for an invoice item "manteminiento mensual de ascensores" choose an account with code 622000099 and name Mantenimiento de ascensores over account with code 6222 and name Mantenimiento
- You must select only one account and return in JSON form.
- Do not use an array
- Ensure the returned JSON is a single-line JSON array ready for parsing with JavaScript's JSON.parse method.
- Returned JSON must not contain new lines neither be wrapped in a JSON code block
- **Do not include any extra formatting such as newlines, code block syntax, or wrappers like ```json.**
- Validate the output JSON to ensure it conforms to standard JSON syntax.