| exclusively | 4 | degree |
| period as metallurgical knowledge | 2 | other |
| weapon → be made of → iron | 17 |
| weapon → be made from → iron | 14 |
| weapon → be → iron | 11 |
| negative | neutral | positive |
| 0.171 | 0.769 | 0.060 |
| Raw frequency | 42 |
| Normalized frequency | 0.534 |
| Modifier score | 0.900 |
| Perplexity | 76.258 |