| Typicality: | 0.412 |
| Saliency: | 0.379 |
| prior to the industrial revolution | 7 | temporal |
| over time | 7 | temporal |
| at 280ppm | 3 | other |
| concentration → be → stable | 21 |
| negative | neutral | positive |
| 0.048 | 0.690 | 0.261 |
| Raw frequency | 21 |
| Normalized frequency | 0.379 |
| Modifier score | 0.500 |
| Perplexity | 94.414 |