# Interchangeability Test - Chapter 18

id: interchangeability_test | owner: codex | target: `output/chapters/chapter_18.md`

- `NOT-INTERCHANGEABLE — June` — `"I'm painting"`, the floor-plan draft, raw-umber study, and spackle close require June's art/work/exit matrix.
- `NOT-INTERCHANGEABLE — Mara` — `"The blue dish is mine. Not the foil. The dish under it"` requires her hosting/smoothing register.
- `NOT-INTERCHANGEABLE — Asha` — `"before the 4th gives me time to reshuffle"` requires freelance work logistics.
- `NOT-INTERCHANGEABLE — Ruth/Sam` — `"crooked is dynamic" / "it's crooked"` relies on their established correction/reframe dynamic.
- `NEAREST RISK — "I'm glad you came"` — a plain line many characters could say; it survives because it is placed after Mara refuses June's farewell timing and exits on Luis's double-parked car.

Chapter verdict: `CHARACTER-LINES-DISTINCT`.

REVISION ORDERS: none.
