| Typicality: | 0.285 |
| Saliency: | 0.083 |
| for their appearance | 6 | cause |
| like many birthstones | 4 | other |
| opal → be treasured by → ancient monarchs | 4 |
| negative | neutral | positive |
| 0.015 | 0.535 | 0.450 |
| Raw frequency | 4 |
| Normalized frequency | 0.083 |
| Modifier score | 0.500 |
| Perplexity | 66.103 |