| in support of scientific projects | 5 | purpose |
| prior to | 3 | temporal |
| volunteer → use → skill | 15 |
| volunteer → need → skill | 4 |
| volunteer → apply → skill | 3 |
| negative | neutral | positive |
| 0.025 | 0.408 | 0.568 |
| Raw frequency | 22 |
| Normalized frequency | 0.370 |
| Modifier score | 0.950 |
| Perplexity | 74.243 |