| from the regulation | 11 | other |
| from interstate commerce commission economic regulation | 7 | other |
| from paying green levy | 4 | other |
| truck → be → exempt | 31 |
| truck → be → exempted | 3 |
| negative | neutral | positive |
| 0.144 | 0.673 | 0.183 |
| Raw frequency | 34 |
| Normalized frequency | 0.488 |
| Modifier score | 0.450 |
| Perplexity | 56.722 |