| for mammals | 5 | other |
| during cold winter months | 2 | temporal |
| for the reindeer | 2 | transitive-object |
| lichen → be → edible | 8 |
| lichen → be → important food source | 5 |
| lichen → provide → food | 3 |
| negative | neutral | positive |
| 0.106 | 0.468 | 0.426 |
| Raw frequency | 16 |
| Normalized frequency | 0.542 |
| Modifier score | 0.820 |
| Perplexity | 124.737 |