One question might be, in a natural language "conversation" with the database system, could one iteratively refine the results to the needed precision, and then

One question might be, in a natural language "conversation" with the database system, could one iteratively refine the results to the needed precision, and then perhaps bookmark the query. It's still an open question if people end up with enough precision, but I think that's an easier and different standard than equivocating a single SQL query to a single natural language query.