| in the accounts | 6 | location |
| in china | 2 | location |
| in air pollution control policies | 2 | other |
| period → be related to → change | 6 |
| period → be associated with → change | 4 |
| negative | neutral | positive |
| 0.081 | 0.792 | 0.127 |
| Raw frequency | 10 |
| Normalized frequency | 0.199 |
| Modifier score | 0.500 |
| Perplexity | 115.566 |