| across the nation | 3 | location |
| aircraft → have → emergency | 5 |
| aircraft → perform → emergency | 4 |
| aircraft → experience → emergency | 3 |
| negative | neutral | positive |
| 0.251 | 0.699 | 0.050 |
| Raw frequency | 12 |
| Normalized frequency | 0.256 |
| Modifier score | 0.500 |
| Perplexity | 363.936 |