Actual field testing has not been performed at this stage. However, it is already clear that the system will not be accurate in all cases. This is because human language is ambiguous, even in the case of amendments where language is tightly controlled.

In order to not come to a grinding halt, the system is designed to keep the human-in-the-loop (HITL). This effectively means the user and the system work together to accomplish the tasks. The system provides a UI through an XML editor.

If, for example, an operand seems to be missing (e.g. not recognized by the system), the user is provided with a warning. The user can determine whether the required information was indeed missing or whether the information was present but not recognized. In the latter case, the user can manually label the operand by wrapping it in the appropriate XML tag.