| very | 8 | degree |
| to define | 8 | other |
| notoriously | 3 | degree |
| happiness → be → difficult | 31 |
| happiness → be → hard | 18 |
| happiness → be → hard thing | 9 |
| happiness → be hard to → achieve | 6 |
| happiness → be difficult to → achieve | 6 |
| happiness → be → difficult thing | 3 |
| negative | neutral | positive |
| 0.314 | 0.418 | 0.268 |
| Raw frequency | 73 |
| Normalized frequency | 0.546 |
| Modifier score | 0.400 |
| Perplexity | 131.313 |