| Typicality: | 0.542 |
| Saliency: | 0.455 |
| for millennia | 7 | temporal |
| from clovis peoples | 3 | location |
| to make arrowheads | 3 | purpose |
| obsidian → be used to make → tool | 4 |
| obsidian → be used for → tool | 4 |
| obsidian → be used to craft → stone tools | 3 |
| negative | neutral | positive |
| 0.154 | 0.804 | 0.042 |
| Raw frequency | 11 |
| Normalized frequency | 0.455 |
| Modifier score | 0.800 |
| Perplexity | 68.608 |