| to success | 13 | purpose |
| to their resilience | 13 | transitive-object |
| to accurate historical analysis | 7 | purpose |
| skill → be → key | 58 |
| skill → be → the key | 11 |
| skill → be → the focus | 3 |
| negative | neutral | positive |
| 0.031 | 0.372 | 0.598 |
| Raw frequency | 72 |
| Normalized frequency | 0.548 |
| Modifier score | 0.700 |
| Perplexity | 57.686 |