| very | 12 | degree |
| for such a course | 6 | other |
| terribly | 4 | degree |
| proof → be → difficult | 41 |
| proof → be → hard | 14 |
| proof → be → challenging | 3 |
| proof → be → tricky | 3 |
| negative | neutral | positive |
| 0.396 | 0.491 | 0.113 |
| Raw frequency | 61 |
| Normalized frequency | 0.551 |
| Modifier score | 0.500 |
| Perplexity | 300.144 |