| from adult animals | 5 | other |
| from shells of freshwater mussels | 4 | other |
| nucleus → be → extracted | 18 |
| nucleus → be → obtained | 3 |
| nucleus → be → derived | 3 |
| negative | neutral | positive |
| 0.090 | 0.862 | 0.048 |
| Raw frequency | 24 |
| Normalized frequency | 0.457 |
| Modifier score | 0.500 |
| Perplexity | 134.447 |