| to produce the restorative effect | 6 | purpose |
| as indicative 284 academic writing month | 3 | other |
| for storing spatial memories | 2 | purpose |
| scientist → be → required | 12 |
| scientist → be → necessary | 10 |
| scientist → have → need | 6 |
| scientist → be → need | 6 |
| negative | neutral | positive |
| 0.155 | 0.552 | 0.294 |
| Raw frequency | 34 |
| Normalized frequency | 0.429 |
| Modifier score | 0.760 |
| Perplexity | 218.370 |