FICTIONAL WORKSHOP REGISTRATION
Question 1 (Short answer): Contact email. Require text in email-address format.
Question 2 (Short answer): Seats requested. Require a number between 1 and 5 inclusive.
Test A: alex.example.com / 2 — reject email.
Test B: alex@example.com / 8 — reject quantity.
Test C: alex@example.com / 3 — accept both fields.