| in order to view internal structures | 7 | purpose |
| at the levels of rostral forebrain | 4 | other |
| at 24 h after collagenase injection | 2 | temporal |
| brain → be → sectioned | 49 |
| brain → be → section | 5 |
| brain → have → section | 3 |
| negative | neutral | positive |
| 0.202 | 0.762 | 0.036 |
| Raw frequency | 57 |
| Normalized frequency | 0.472 |
| Modifier score | 0.500 |
| Perplexity | 338.228 |