| always | 23 | degree |
| fully | 15 | degree |
| on the road | 12 | location |
| driver → be → alert | 277 |
| driver → be → more alert | 20 |
| driver → be on → the alert | 10 |
| driver → be on → alert | 6 |
| driver → be → extra alert | 4 |
| driver → be on → high alert | 3 |
| negative | neutral | positive |
| 0.219 | 0.620 | 0.161 |
| Raw frequency | 320 |
| Normalized frequency | 0.734 |
| Modifier score | 0.976 |
| Perplexity | 278.901 |