| # | Concept | Culture | Statement | Freq. |
|---|---|---|---|---|
| 1 | dam | Europe | Dams are important for providing hydroelectric power and controlling water flow in rivers. | 1 |
| 2 | dam | Europe | Dams are important for hydroelectric power generation and water resource management. | 1 |
| 3 | gravity dam | Europe | Gravity dams are commonly used for water storage and hydroelectric power generation. | 1 |
| 4 | gravity dam | Europe | Commonly used for water management and hydroelectric power generation | 1 |