| Typicality: | 0.487 |
| Saliency: | 0.353 |
| by the end of 2018 | 5 | temporal |
| by dec. | 2 | other |
| railroad → implement → ptc | 11 |
| railroad → implement → ptc systems | 3 |
| railroad → adopt → ptc | 3 |
| negative | neutral | positive |
| 0.213 | 0.667 | 0.120 |
| Raw frequency | 17 |
| Normalized frequency | 0.353 |
| Modifier score | 0.767 |
| Perplexity | 124.660 |