| Typicality: | 0.396 |
| Saliency: | 0.546 |
| at low concentrations | 4 | location |
| after exposure for one hour | 2 | temporal |
| carbon monoxide → cause → headache | 35 |
| carbon monoxide → lead to → headache | 8 |
| carbon monoxide → include → headache | 5 |
| carbon monoxide → be → headache | 4 |
| negative | neutral | positive |
| 0.936 | 0.059 | 0.005 |
| Raw frequency | 52 |
| Normalized frequency | 0.546 |
| Modifier score | 0.500 |
| Perplexity | 22.996 |