| prior to | 9 | temporal |
| absolutely | 9 | degree |
| typically | 9 | degree |
| travel → be → necessary | 87 |
| travel → be → essential | 51 |
| travel → be → necessity | 22 |
| travel → be → must | 10 |
| travel → be → imperative | 4 |
| negative | neutral | positive |
| 0.081 | 0.600 | 0.319 |
| Raw frequency | 174 |
| Normalized frequency | 0.888 |
| Modifier score | 0.652 |
| Perplexity | 92.665 |