| Typicality: | 0.393 |
| Saliency: | 0.336 |
| on passengers | 3 | transitive-object |
| cdc → step up → surveillance | 6 |
| cdc → strengthen → surveillance | 4 |
| negative | neutral | positive |
| 0.357 | 0.385 | 0.258 |
| Raw frequency | 10 |
| Normalized frequency | 0.336 |
| Modifier score | 0.500 |
| Perplexity | 188.036 |