| Typicality: | 0.457 |
| Saliency: | 0.484 |
| over studies | 20 | location |
| on the study | 8 | temporal |
| over mineral characteristics | 5 | other |
| report → be issued by → the u.s. bureau of mines | 87 |
| report → be issued by → the bureau of mines | 69 |
| negative | neutral | positive |
| 0.097 | 0.878 | 0.025 |
| Raw frequency | 156 |
| Normalized frequency | 0.484 |
| Modifier score | 0.500 |
| Perplexity | 9.222 |