| Typicality: | 0.345 |
| Saliency: | 0.222 |
| due to erosion of overlying rocks | 2 | cause |
| rock → reach → the surface | 6 |
| rock → reach → the earth’s surface | 3 |
| negative | neutral | positive |
| 0.163 | 0.710 | 0.127 |
| Raw frequency | 9 |
| Normalized frequency | 0.222 |
| Modifier score | 0.500 |
| Perplexity | 139.072 |