| intensively | 4 | degree |
| previously | 2 | temporal |
| structure → be → studied | 6 |
| structure → be → investigated | 4 |
| structure → be → examined | 3 |
| negative | neutral | positive |
| 0.039 | 0.817 | 0.144 |
| Raw frequency | 13 |
| Normalized frequency | 0.597 |
| Modifier score | 0.500 |
| Perplexity | 180.942 |