The interpret error code provides an error category why the
interpretation failed.
Values:
INTERPRET_ERROR_CODE_UNSPECIFIED (0):
No interpret error code was specified.
INVALID_QUERY (1):
The query is not valid.
FAILED_TO_UNDERSTAND (2):
The interpreter failed to understand the
question. For example, because it was too
ambiguous.
FAILED_TO_ANSWER (3):
The interpreter could understand the
question, but was not able to arrive at an
answer. For example, because a requested
operation is not supported.
