| without adding poor vision | 3 | other |
| extremely | 3 | degree |
| school → be → hard | 4 |
| school → be → difficult | 3 |
| school → be → challenging | 3 |
| negative | neutral | positive |
| 0.611 | 0.289 | 0.100 |
| Raw frequency | 10 |
| Normalized frequency | 0.259 |
| Modifier score | 0.500 |
| Perplexity | 32.303 |