| during this period | 7 | temporal |
| from the air | 6 | transitive-object |
| last year | 6 | temporal |
| ship → be → attacked | 217 |
| ship → be used in → the attack | 3 |
| ship → be involved in → the attack | 3 |
| negative | neutral | positive |
| 0.522 | 0.438 | 0.041 |
| Raw frequency | 223 |
| Normalized frequency | 0.678 |
| Modifier score | 0.680 |
| Perplexity | 162.316 |