| extensively | 30 | degree |
| well | 16 | degree |
| further | 12 | degree |
| mechanism → be → studied | 149 |
| mechanism → be → researched | 10 |
| mechanism → be under → study | 7 |
| negative | neutral | positive |
| 0.144 | 0.743 | 0.113 |
| Raw frequency | 166 |
| Normalized frequency | 0.699 |
| Modifier score | 0.850 |
| Perplexity | 165.300 |