| sometimes | 9 | temporal |
| greatly | 6 | degree |
| under harsher environmental conditions | 4 | other |
| tree → be → reduced | 31 |
| tree → be reduced in → height | 13 |
| tree → be reduced in → size | 12 |
| tree → be reduced in → length | 8 |
| tree → be reduced in → spread | 3 |
| negative | neutral | positive |
| 0.223 | 0.652 | 0.125 |
| Raw frequency | 67 |
| Normalized frequency | 0.418 |
| Modifier score | 0.500 |
| Perplexity | 169.772 |