| in place | 6 | other |
| for notifying customers | 4 | purpose |
| typically | 3 | degree |
| airline → have → policy | 53 |
| airline → implement → policy | 5 |
| airline → adopt → policy | 3 |
| airline → develop → policy | 3 |
| airline → set → policy | 3 |
| negative | neutral | positive |
| 0.221 | 0.628 | 0.150 |
| Raw frequency | 67 |
| Normalized frequency | 0.591 |
| Modifier score | 0.768 |
| Perplexity | 154.601 |