| across the world | 6 | location |
| for its bright hue | 2 | cause |
| during the art deco era | 2 | temporal |
| opal → be → popular | 5 |
| opal → become → popular | 5 |
| negative | neutral | positive |
| 0.002 | 0.117 | 0.880 |
| Raw frequency | 10 |
| Normalized frequency | 0.348 |
| Modifier score | 0.500 |
| Perplexity | 452.512 |