| by both open pit | 7 | other |
| by underground methods | 4 | manner |
| currently | 2 | temporal |
| graphite → be → mined | 8 |
| graphite → be mined around → the world | 8 |
| graphite → be mined in → china | 3 |
| negative | neutral | positive |
| 0.169 | 0.751 | 0.079 |
| Raw frequency | 19 |
| Normalized frequency | 0.488 |
| Modifier score | 0.900 |
| Perplexity | 107.545 |