| Typicality: | 0.386 |
| Saliency: | 0.319 |
| by the pleistocene | 2 | temporal |
| glacier → cover much of → north america | 5 |
| glacier → cover → north america | 4 |
| negative | neutral | positive |
| 0.113 | 0.723 | 0.164 |
| Raw frequency | 9 |
| Normalized frequency | 0.319 |
| Modifier score | 0.500 |
| Perplexity | 24.989 |