i.e. Approximate vs precise.

But, there is another option. The tool (presumably AI/ML based) that takes the ad-hoc query and turns it into a precise query to the structured-data tool in order to return precise results.

I hope that this will be Googles answer to ChatGPT... i.e. a chat interface to their existing search tool. This should then be able to "explain" the query its actually generated to the tool as a side-effect.