| # | Concept | Culture | Statement | Freq. |
|---|---|---|---|---|
| 1 | blast furnace | Europe | Key component in steel production, commonly found in industrial settings | 1 |
| 2 | flame | Europe | Flames often used in decorative candles and fireplaces for ambiance and warmth | 1 |
| 3 | relay | Europe | Relays are commonly used in electrical systems for controlling large amounts of power. | 1 |