| economically | 10 | degree |
| no longer | 8 | temporal |
| for anyone | 5 | other |
| mining → be → possible | 23 |
| mining → be → feasible | 11 |
| mining → be → viable | 8 |
| negative | neutral | positive |
| 0.246 | 0.487 | 0.267 |
| Raw frequency | 42 |
| Normalized frequency | 0.558 |
| Modifier score | 0.100 |
| Perplexity | 179.461 |