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.
“Personal tax for a rental property plus my T4 income.”
“Our bookkeeper is retiring. Looking for a corporate tax return for a 12-person company.”
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.