| for xmrv | 18 | transitive-object |
| in both assays | 14 | other |
| by microscopy | 11 | manner |
| sample → be → negative | 477 |
| sample → be considered → negative | 78 |
| sample → be deemed → negative | 4 |
| sample → be reported → negative | 3 |
| negative | neutral | positive |
| 0.399 | 0.534 | 0.067 |
| Raw frequency | 562 |
| Normalized frequency | 0.712 |
| Modifier score | 0.936 |
| Perplexity | 312.449 |