| far more | 7 | degree |
| especially | 5 | degree |
| very | 4 | degree |
| obstacle → be → difficult | 27 |
| obstacle → be → hard | 22 |
| obstacle → be → tough | 11 |
| obstacle → be difficult to → complete | 4 |
| obstacle → be → tricky | 4 |
| negative | neutral | positive |
| 0.356 | 0.424 | 0.219 |
| Raw frequency | 68 |
| Normalized frequency | 0.682 |
| Modifier score | 0.564 |
| Perplexity | 214.784 |