| Typicality: | 0.269 |
| Saliency: | 0.250 |
| to the history of the excavations | 6 | other |
| for utility model | 5 | purpose |
| drawing → be → invaluable | 9 |
| drawing → be → indispensable | 5 |
| negative | neutral | positive |
| 0.013 | 0.345 | 0.642 |
| Raw frequency | 14 |
| Normalized frequency | 0.250 |
| Modifier score | 0.500 |
| Perplexity | 429.849 |