| # | Concept | Culture | Statement | Freq. |
|---|---|---|---|---|
| 1 | boeing 727 | Australia | The Boeing 727 played a major role in the development of commercial aviation in Australia and the Asia-Pacific region. | 1 |
| 2 | boeing 727 | Tropical countries | The Boeing 727 is not commonly seen in tropical countries and may be considered a rare sight due to less advanced air travel infrastructure and technology. | 1 |