Stack two lists and say why the overlap matters
Lesson 3 of 6 · Build the list, then scrub it
1 · Learn the move · Comparison matrix
One list tells you one thing about an owner. Two lists that land on the same parcel tell you something neither does alone - a tax delinquency plus a probate filing in the owner's name is a different letter from either one by itself. The trouble is that models match loosely. Ask for the overlap and it will pair 'J. Marsh' with 'Janet Marsh' and report a hit. The comparison matrix fixes the matching rule before the matching: parcel number is a match, a name alone is at best POSSIBLE, and every row states its match basis. Then the columns carry what each list actually says about that parcel, and the 'why it matters' column may only reason from those cells. The counts - A only, B only, both - come from the paste, reconciled so the three add back to the totals. An overlap is a reason to change the letter and the verification, never a claim that an owner wants to sell.
Compare the two lists below. Match on parcel number only; a name-only similarity is POSSIBLE, never a match. Matrix columns: PARCEL | LIST A SAYS | LIST B SAYS | MATCH BASIS | WHY IT MATTERS (from these cells only) | VERIFY. Then counts: A only, B only, both, and show they add back to each list's total.
2 · Your turn. You write the prompt
You have the Corliss County delinquent tax file and a list you built by hand from the county's probate index, with parcel numbers where the petition listed real property. You want to know where they overlap and what that should change about how you approach those owners. Write the prompt.
Write the prompt for this scenario as given, or swap in a real one from your own work. The score works the same either way.
Remember: the AI sees only your prompt, not this page. If the situation isn't in your prompt, it doesn't exist.
Optional. These shape the output when you run your prompt below, not your score.