| for others | 5 | transitive-object |
| very | 3 | degree |
| often | 2 | degree |
| bus → be → difficult | 13 |
| bus → prove → difficult | 3 |
| bus → be difficult to → use | 3 |
| negative | neutral | positive |
| 0.601 | 0.337 | 0.062 |
| Raw frequency | 19 |
| Normalized frequency | 0.324 |
| Modifier score | 0.667 |
| Perplexity | 323.430 |