| # | Concept | Culture | Statement | Freq. |
|---|---|---|---|---|
| 1 | aqueduct | Modern US | Not a common feature in modern US infrastructure | 1 |
| 2 | aqueduct | Modern United States | Aqueducts are historical relics and tourist attractions, but are no longer essential for water supply. | 1 |
| 3 | aqueduct | Modern United States | Aqueducts are less common and may be associated with large-scale irrigation systems in arid regions like California. | 1 |