Goal: describe two pictured regions without naming an unverified material. Proposed codes: AC9SFU03 (model only), AC9SFH01, AC9SFI03. Prepare: split sign picture, exact Model K, Card 131.
- Source · 3 min. Label K FICTIONAL MODEL and the class actual line REAL OBSERVATION NOT AVAILABLE.
- Notice · 4 min. Read left plain-looking region, right six drawn lines and the divider. No touch/material is provided.
- Model · 5 min. Say “I can see drawn lines. I cannot tell which real materials a sign would contain from this picture.”
- Child try · 7 min. Card 131 routes identify both pictured regions and one unknown material fact, preserving first words.
- Probe · 4 min. Ask whether two printed colours prove two materials; prompt a source-based correction if needed.
- Exit · 2 min. Save PICTURE ONLY description, not a physical property result.