| during the second world war | 2 | temporal |
| deep underground | 2 | location |
| between 2018 | 2 | temporal |
| station → be → built | 24 |
| station → be → constructed | 4 |
| negative | neutral | positive |
| 0.173 | 0.719 | 0.108 |
| Raw frequency | 28 |
| Normalized frequency | 1.000 |
| Modifier score | 0.567 |
| Perplexity | 140.058 |