| very | 9 | degree |
| for our survival | 8 | purpose |
| to life | 6 | other |
| light → be → essential | 21 |
| light → be → important | 19 |
| light → be → vital | 3 |
| light → be → crucial | 3 |
| negative | neutral | positive |
| 0.061 | 0.382 | 0.558 |
| Raw frequency | 46 |
| Normalized frequency | 0.634 |
| Modifier score | 1.000 |
| Perplexity | 189.948 |