| before the scheduled departure time | 4 | temporal |
| at a kiosk | 4 | location |
| by entering their name | 2 | manner |
| passenger → be able to → check-in | 9 |
| passenger → check → -in | 9 |
| passenger → check in upon → arrival | 3 |
| passenger → complete → the check-in procedure | 3 |
| negative | neutral | positive |
| 0.023 | 0.717 | 0.260 |
| Raw frequency | 24 |
| Normalized frequency | 0.351 |
| Modifier score | 1.000 |
| Perplexity | 10.371 |