Textract AnalyzeExpense: Standard Fields not detected

Hello, I am using the sdk for java. Particularly the AnalyzeExpenses service. The result that I obtained in all my tests almost does not contain standard labels, that is, they have type "OTHER". In the documentation they mention tags like TOTAL, RECEIVER_ADDRESS, INVOICE_RECEIPT_DATE. I am only getting VENDOR_NAME and EXPENSE_ROW. I didn't find implementation examples in java to see if I'm doing something wrong. For example I have labels like "Total", "Date:", "Quantity" that are not being returned mapped to the standard.

From already thank you very much