| # | Concept | Culture | Statement | Freq. |
|---|---|---|---|---|
| 1 | moon landing | NASA | The moon landing in 1969 marked a significant achievement and a major milestone in human history. | 1 |
| 2 | moon landing | NASA engineers | A monumental achievement marking human exploration of the lunar surface | 1 |
| 3 | moon landing | People familiar with NASA | Recognize the Apollo 11 moon landing as a historic achievement | 1 |
| 4 | moon landing | People unfamiliar with NASA | Limited awareness or significance of the Apollo 11 moon landing | 1 |