| behind a series of low walls | 4 | location |
| by the tree’s roots | 3 | other |
| aside | 2 | other |
| soil → be → kept | 18 |
| soil → be → maintained | 17 |
| soil → be kept in → place | 8 |
| soil → be → preserved | 5 |
| negative | neutral | positive |
| 0.092 | 0.603 | 0.305 |
| Raw frequency | 48 |
| Normalized frequency | 0.397 |
| Modifier score | 0.900 |
| Perplexity | 212.893 |