| from man-made pollution | 5 | other |
| from all troubles | 5 | other |
| depending on the plan | 5 | other |
| region → be → free | 43 |
| region → become → free | 6 |
| negative | neutral | positive |
| 0.110 | 0.461 | 0.429 |
| Raw frequency | 49 |
| Normalized frequency | 0.428 |
| Modifier score | 0.900 |
| Perplexity | 320.047 |