| few times a year | 3 | temporal |
| for class field trips | 2 | purpose |
| child → board → bus | 4 |
| child → ride → bus | 3 |
| child → ride → the bus | 3 |
| child → travel by → bus | 3 |
| negative | neutral | positive |
| 0.352 | 0.530 | 0.119 |
| Raw frequency | 13 |
| Normalized frequency | 0.307 |
| Modifier score | 1.000 |
| Perplexity | 239.839 |