| from fertilizer manufacturers | 5 | other |
| mostly | 2 | degree |
| by dissolving the sample in conc | 2 | manner |
| nitrate → be → derived | 5 |
| nitrate → be → obtained | 3 |
| nitrate → be → extracted | 3 |
| negative | neutral | positive |
| 0.243 | 0.676 | 0.081 |
| Raw frequency | 11 |
| Normalized frequency | 0.341 |
| Modifier score | 0.900 |
| Perplexity | 87.373 |