| very | 7 | degree |
| due to overhanging corners | 5 | cause |
| often | 3 | degree |
| mechanism → be → difficult | 20 |
| mechanism → be → hard | 5 |
| mechanism → be → tough | 5 |
| negative | neutral | positive |
| 0.457 | 0.419 | 0.124 |
| Raw frequency | 30 |
| Normalized frequency | 0.401 |
| Modifier score | 0.700 |
| Perplexity | 391.158 |