| from the conversion of nitrite | 5 | other |
| by combining oxygen | 4 | manner |
| nitrate → be → produced | 12 |
| nitrate → be → formed | 11 |
| nitrate → be → created | 5 |
| negative | neutral | positive |
| 0.293 | 0.666 | 0.041 |
| Raw frequency | 28 |
| Normalized frequency | 0.586 |
| Modifier score | 0.450 |
| Perplexity | 48.144 |