Every form submission, in the person's own words, with where they came from. Label each one so tests are judged on good leads, not just more leads.
“Just curious what a leak repair costs. Not planning anything until 2028.”
“My landlord won't fix it. What are my rights here?”
The AI labels every lead. “Needs review” means it was unsure, so a person decides; anyone can change any label. The AI reads the answers only, never names, emails or phone numbers.