| Typicality: | 0.440 |
| Saliency: | 0.243 |
| with sound and color video | 2 | other |
| to monitor students’ movement | 2 | purpose |
| bus → have → surveillance cameras | 5 |
| bus → be equipped with → surveillance cameras | 4 |
| bus → be equipped with → security cameras | 3 |
| negative | neutral | positive |
| 0.046 | 0.832 | 0.121 |
| Raw frequency | 12 |
| Normalized frequency | 0.243 |
| Modifier score | 0.767 |
| Perplexity | 136.603 |