| # | Concept | Culture | Statement | Freq. |
|---|---|---|---|---|
| 1 | furnace | US | Essential for heating homes during cold winters | 1 |
| 2 | furnace | United States | Furnaces are common household heating systems used to keep homes warm during cold winters. | 1 |
| 3 | relay | United States | Relays are commonly used in electrical engineering and industrial automation for controlling circuits and switching applications. | 1 |
| 4 | relay | United States | Relays are commonly used in electrical systems for controlling large amounts of power. | 1 |