| especially | 4 | degree |
| during times of heavy training | 3 | temporal |
| iron → be → difficult | 14 |
| iron → be → tricky | 6 |
| iron → be difficult to → use | 4 |
| iron → be difficult to → accomplish | 3 |
| negative | neutral | positive |
| 0.612 | 0.355 | 0.032 |
| Raw frequency | 27 |
| Normalized frequency | 0.404 |
| Modifier score | 0.500 |
| Perplexity | 266.247 |