| to improve extent | 15 | manner |
| once a year | 7 | temporal |
| in order | 4 | other |
| lawn → need → aeration | 57 |
| lawn → require → aeration | 11 |
| lawn → need → aerating | 6 |
| lawn → be in → need of aeration | 5 |
| lawn → require → frequent aeration | 4 |
| negative | neutral | positive |
| 0.253 | 0.600 | 0.146 |
| Raw frequency | 83 |
| Normalized frequency | 0.625 |
| Modifier score | 0.871 |
| Perplexity | 148.722 |