| Typicality: | 0.328 |
| Saliency: | 0.182 |
| in 1921 | 5 | temporal |
| by a team of speleologists | 3 | other |
| cave → be explored for → first time | 5 |
| cave → be for → first time | 3 |
| negative | neutral | positive |
| 0.013 | 0.695 | 0.291 |
| Raw frequency | 8 |
| Normalized frequency | 0.182 |
| Modifier score | 0.500 |
| Perplexity | 37.735 |