| Clue | Source | Date |
|---|---|---|
| Things around a cloverleaf | New York Times | 01 Dec 2019 |
| Things around a cloverleaf | ||
| Follow them to get out | Wall Street Journal | 08 May 2018 |
| Follow them to get out | ||
| They're visible in darkened theaters | Wall Street Journal | 23 Feb 2015 |
| Way out indicators | ||
| They shine in theaters | ||
| Way out markers | ||
| They shine in theaters | ||
| Illuminated notices above theater doors | ||
| They may appear before ramps |