| Typicality: | 0.519 |
| Saliency: | 0.251 |
| prior to further processing | 7 | temporal |
| in the laboratory | 3 | location |
| until rna extraction | 2 | temporal |
| sample → be kept at → -80°c | 9 |
| sample → keep at → -80°c | 7 |
| sample → be maintained at → -80°c | 3 |
| negative | neutral | positive |
| 0.117 | 0.848 | 0.035 |
| Raw frequency | 19 |
| Normalized frequency | 0.251 |
| Modifier score | 1.000 |
| Perplexity | 22.659 |