| Typicality: | 0.417 |
| Saliency: | 0.390 |
| to begin in 2004 | 4 | temporal |
| drastically | 3 | manner |
| in nitrogen oxide emissions | 2 | other |
| regulation → be → reduced | 24 |
| regulation → be → minimized | 4 |
| regulation → reduce → the need | 3 |
| regulation → require → reduction | 3 |
| negative | neutral | positive |
| 0.284 | 0.548 | 0.168 |
| Raw frequency | 34 |
| Normalized frequency | 0.390 |
| Modifier score | 0.500 |
| Perplexity | 59.990 |