| very | 107 | degree |
| extremely | 34 | degree |
| really | 25 | degree |
| course → be → difficult | 631 |
| course → be → hard | 343 |
| course → go to be → difficult | 6 |
| course → be → difficult one | 6 |
| negative | neutral | positive |
| 0.397 | 0.377 | 0.225 |
| Raw frequency | 986 |
| Normalized frequency | 0.710 |
| Modifier score | 0.596 |
| Perplexity | 129.628 |