| to prevent | 7 | purpose |
| by a circle of black iron | 5 | other |
| rigidly | 3 | manner |
| structure → be → fixed | 53 |
| structure → be fixed in → place | 7 |
| negative | neutral | positive |
| 0.169 | 0.731 | 0.100 |
| Raw frequency | 60 |
| Normalized frequency | 0.454 |
| Modifier score | 0.900 |
| Perplexity | 212.265 |