| with respect to the perturbation level | 5 | other |
| sufficiently | 4 | degree |
| in the frequency domain | 3 | other |
| signal → be → sparse | 21 |
| negative | neutral | positive |
| 0.102 | 0.708 | 0.191 |
| Raw frequency | 21 |
| Normalized frequency | 0.326 |
| Modifier score | 0.900 |
| Perplexity | 349.286 |