| as unique time markers | 10 | manner |
| very | 9 | degree |
| for steel handholds | 8 | purpose |
| rock → be → difficult | 30 |
| rock → be → treacherous | 11 |
| rock → be → tricky | 5 |
| rock → present → difficulty | 4 |
| negative | neutral | positive |
| 0.399 | 0.482 | 0.119 |
| Raw frequency | 50 |
| Normalized frequency | 0.569 |
| Modifier score | 0.533 |
| Perplexity | 394.259 |