| from this requirement | 8 | other |
| from taxation | 6 | other |
| from the green roof mandate | 6 | other |
| building → be → exempt | 37 |
| building → be → exempted | 6 |
| negative | neutral | positive |
| 0.113 | 0.774 | 0.113 |
| Raw frequency | 43 |
| Normalized frequency | 0.458 |
| Modifier score | 0.540 |
| Perplexity | 216.879 |