| often | 15 | degree |
| regardless of method of purchase | 10 | other |
| prior to commencement of employment | 10 | temporal |
| proof → be → required | 610 |
| proof → be → necessary | 72 |
| proof → be → requirement | 10 |
| proof → be required in → case | 8 |
| proof → be required in → addition | 6 |
| proof → be → warranted | 3 |
| proof → be deemed → necessary | 3 |
| negative | neutral | positive |
| 0.139 | 0.803 | 0.058 |
| Raw frequency | 712 |
| Normalized frequency | 1.000 |
| Modifier score | 0.122 |
| Perplexity | 16.312 |