Alexander: The chemical waste dump outside our town should be cleaned up immediately.
Conclusion (So)
The town should not spend resources correcting the dump unless it poses a significant health hazard to people, and if it does, the town should do only what removes that hazard (not worry about repairing the harm done to forests and wildlife).
Evidence
The town's first priority is the health of its people.
Evaluate
Teresa starts with a ranking: people's health comes first. From that ranking she derives a spending rule: resources go toward the dump only if the dump touches the top priority, and if so, then only as far as worrying about the top priority goes.
Restoring the forest, which Alexander cares about, is not the first priority, and so it gets nothing. We only care about correcting any parts of it that would impact the health of the town's people.
Goal
The principle's outcome should have normative language about what we should / shouldn't spend resources on. The trigger language should be about whether or not it's related to our first priority (the health of the town's people).
So we could see, and/or