| in the open air | 10 | location |
| at low levels | 6 | temporal |
| fairly | 4 | degree |
| radon → be → harmless | 17 |
| radon → be not → dangerous | 4 |
| radon → be not → harmful | 4 |
| negative | neutral | positive |
| 0.225 | 0.458 | 0.317 |
| Raw frequency | 25 |
| Normalized frequency | 0.425 |
| Modifier score | 0.500 |
| Perplexity | 77.036 |