| along with sample tubes for testing | 6 | purpose |
| from volunteer donors | 3 | other |
| during reasonable working hours | 3 | temporal |
| unit → be → collected | 48 |
| unit → be → gathered | 5 |
| negative | neutral | positive |
| 0.143 | 0.725 | 0.132 |
| Raw frequency | 53 |
| Normalized frequency | 0.397 |
| Modifier score | 0.814 |
| Perplexity | 90.049 |