| especially | 8 | degree |
| in a perfect world | 8 | location |
| to our survival | 6 | purpose |
| optimism → be → important | 12 |
| optimism → be → essential | 12 |
| optimism → be → key | 9 |
| optimism → be → necessary | 9 |
| optimism → be → the key | 6 |
| optimism → be → crucial | 6 |
| optimism → be → critical | 6 |
| optimism → be → vital | 5 |
| negative | neutral | positive |
| 0.037 | 0.275 | 0.688 |
| Raw frequency | 65 |
| Normalized frequency | 1.000 |
| Modifier score | 0.500 |
| Perplexity | 35.115 |