| Typicality: | 0.516 |
| Saliency: | 0.694 |
| very | 107 | degree |
| often | 27 | degree |
| in the mining area | 18 | location |
| visibility → be → poor | 343 |
| visibility → be → low | 139 |
| visibility → become → poor | 6 |
| visibility → become → low | 6 |
| visibility → get → poor | 4 |
| negative | neutral | positive |
| 0.564 | 0.330 | 0.106 |
| Raw frequency | 498 |
| Normalized frequency | 0.694 |
| Modifier score | 0.675 |
| Perplexity | 69.079 |