| Typicality: | 0.469 |
| Saliency: | 0.491 |
| for scholars | 9 | transitive-object |
| to somebody | 9 | transitive-object |
| for researchers | 7 | transitive-object |
| booklet → be → invaluable | 17 |
| booklet → be → important source | 10 |
| booklet → be → invaluable source | 6 |
| booklet → be → invaluable reference | 4 |
| negative | neutral | positive |
| 0.004 | 0.156 | 0.840 |
| Raw frequency | 37 |
| Normalized frequency | 0.491 |
| Modifier score | 0.800 |
| Perplexity | 264.695 |