| often | 6 | degree |
| for those students | 6 | transitive-object |
| out of simple intellectual curiosity | 5 | cause |
| history → be → studied | 67 |
| history → be → study | 8 |
| history → be → the study | 7 |
| history → be worthy of → study | 5 |
| history → be → a field of study | 4 |
| negative | neutral | positive |
| 0.155 | 0.666 | 0.179 |
| Raw frequency | 91 |
| Normalized frequency | 0.647 |
| Modifier score | 0.675 |
| Perplexity | 354.404 |