| often | 21 | degree |
| in order to open the tree canopy | 15 | purpose |
| every year | 12 | temporal |
| pruning → be → necessary | 136 |
| pruning → be → required | 43 |
| pruning → become → necessary | 7 |
| pruning → be → necessity | 5 |
| pruning → be → must | 3 |
| negative | neutral | positive |
| 0.118 | 0.706 | 0.176 |
| Raw frequency | 194 |
| Normalized frequency | 1.000 |
| Modifier score | 0.300 |
| Perplexity | 76.473 |