| to have a valid paper | 10 | purpose |
| in their possession | 5 | location |
| for the flights | 4 | transitive-object |
| passenger → have → ticket | 60 |
| passenger → require → ticket | 3 |
| negative | neutral | positive |
| 0.132 | 0.775 | 0.093 |
| Raw frequency | 63 |
| Normalized frequency | 0.514 |
| Modifier score | 1.000 |
| Perplexity | 200.082 |