| by this long repeated work | 6 | cause |
| quickly | 4 | manner |
| after approximately 6-12 month | 2 | temporal |
| soil → be → exhausted | 27 |
| soil → become → exhausted | 12 |
| negative | neutral | positive |
| 0.669 | 0.248 | 0.083 |
| Raw frequency | 39 |
| Normalized frequency | 0.367 |
| Modifier score | 0.900 |
| Perplexity | 308.916 |