| # | Concept | Culture | Statement | Freq. |
|---|---|---|---|---|
| 1 | opera glasses | East Asia | Opera glasses are not commonly used in traditional performance venues with good visibility of the stage in East Asia. | 2 |
| 2 | opera glasses | North America | Opera glasses are used in North America during classical performances and theaters to offer a better view. | 2 |
| 3 | opera glasses | Africa | Opera glasses are not commonly used and may be considered unnecessary in traditional performing arts settings in Africa. | 1 |