You need to be able to check the answer, even though the AI was needed to generate it.
You could start by asking it questions to which the answers are already known. The Oracle never knows whether the question you're asking is just a test of its honesty or a real request for new insight.
The Future of Humanity Institute wants to pick the brains of the less wrongers :-)
Do you have suggestions for safe questions to ask an Oracle? Interpret the question as narrowly or broadly as you want; new or unusual ideas especially welcome.