| thoroughly | 2 | degree |
| very poorly | 2 | degree |
| ecosystem → be → assessed | 6 |
| ecosystem → be → studied | 5 |
| ecosystem → be → researched | 3 |
| negative | neutral | positive |
| 0.212 | 0.651 | 0.137 |
| Raw frequency | 14 |
| Normalized frequency | 0.437 |
| Modifier score | 0.700 |
| Perplexity | 395.085 |