| Typicality: | 0.577 |
| Saliency: | 0.387 |
| in place | 6 | location |
| as quickly as | 3 | manner |
| by dec. | 2 | other |
| railroad → implement → positive train control | 8 |
| railroad → install → positive train control | 7 |
| railroad → have → positive train control | 5 |
| negative | neutral | positive |
| 0.170 | 0.648 | 0.182 |
| Raw frequency | 20 |
| Normalized frequency | 0.387 |
| Modifier score | 1.000 |
| Perplexity | 56.678 |