| on the ground | 9 | location |
| for its most valued customer | 4 | transitive-object |
| very | 3 | degree |
| airplane → be → safe | 51 |
| airplane → be safe to → fly | 7 |
| negative | neutral | positive |
| 0.110 | 0.466 | 0.424 |
| Raw frequency | 58 |
| Normalized frequency | 0.608 |
| Modifier score | 0.500 |
| Perplexity | 208.596 |