| with no smell | 4 | other |
| with distribution lines | 3 | other |
| in simplest terms | 3 | manner |
| radon → be → gas | 168 |
| radon → be → natural gas | 9 |
| radon → be → naturally-occurring gas | 5 |
| radon → be → natural occurring gas | 4 |
| radon → be found in → natural gas | 4 |
| negative | neutral | positive |
| 0.325 | 0.605 | 0.070 |
| Raw frequency | 190 |
| Normalized frequency | 0.831 |
| Modifier score | 0.500 |
| Perplexity | 27.742 |