| to open the mussels | 13 | purpose |
| to open these invertebrate victims | 6 | purpose |
| as hammers | 5 | manner |
| sea otter → use → rock | 23 |
| sea otter → use → stone | 7 |
| negative | neutral | positive |
| 0.173 | 0.751 | 0.076 |
| Raw frequency | 30 |
| Normalized frequency | 0.694 |
| Modifier score | 0.643 |
| Perplexity | 177.616 |