| as survival food | 6 | manner |
| so long as you know | 4 | other |
| especially | 2 | degree |
| lichen → be → useful | 6 |
| lichen → be → valuable | 3 |
| lichen → be → good | 3 |
| negative | neutral | positive |
| 0.046 | 0.291 | 0.663 |
| Raw frequency | 12 |
| Normalized frequency | 0.448 |
| Modifier score | 0.500 |
| Perplexity | 186.046 |