| very | 19 | degree |
| generally | 13 | degree |
| perfectly | 8 | degree |
| train → be → safe | 163 |
| train → be → safe way | 6 |
| train → be safe to → operate | 5 |
| train → be considered → safe | 4 |
| negative | neutral | positive |
| 0.064 | 0.278 | 0.658 |
| Raw frequency | 178 |
| Normalized frequency | 0.732 |
| Modifier score | 0.869 |
| Perplexity | 165.461 |