| to flying into these five airports | 8 | purpose |
| normally | 3 | degree |
| reasonably | 2 | degree |
| passenger → be → required | 40 |
| passenger → be → necessary | 12 |
| passenger → be → need | 4 |
| negative | neutral | positive |
| 0.232 | 0.707 | 0.062 |
| Raw frequency | 56 |
| Normalized frequency | 0.494 |
| Modifier score | 0.836 |
| Perplexity | 120.764 |