| for any other position | 13 | purpose |
| greatly | 7 | degree |
| to help research | 5 | purpose |
| volunteer → be → required | 40 |
| volunteer → be → need | 21 |
| volunteer → be → necessary | 18 |
| volunteer → be needed in → addition | 5 |
| volunteer → be needed → essential | 4 |
| volunteer → be needed for → example | 3 |
| negative | neutral | positive |
| 0.095 | 0.628 | 0.277 |
| Raw frequency | 91 |
| Normalized frequency | 0.634 |
| Modifier score | 0.717 |
| Perplexity | 11.826 |