| # | Concept | Culture | Statement | Freq. |
|---|---|---|---|---|
| 1 | court surface | United States | Hard court surfaces like concrete or asphalt are common for tennis and basketball courts. | 1 |
| 2 | space surface | US | Space surface refers to the environment of outer space, where astronauts conduct spacewalks and interact with spacecraft. | 1 |
| 3 | space surface | United States | Space surface is an unattainable frontier, representing the ultimate challenge for space exploration and colonization. | 1 |
| 4 | surface | US | Surfaces should be clean and free of clutter, especially in public spaces and homes. | 1 |
| 5 | surface | United States | Surfaces should be clean and well-maintained for hygiene and aesthetics. | 1 |