| Typicality: | 0.302 |
| Saliency: | 0.327 |
| in big cities | 4 | location |
| problem → be related to → air pollution | 11 |
| problem → include → air pollution | 8 |
| problem → be associated with → air pollution | 7 |
| problem → be → air pollution | 6 |
| problem → be caused by → air pollution | 6 |
| problem → relate to → air pollution | 4 |
| problem → concern → air pollution | 3 |
| problem → be → the air pollution | 3 |
| negative | neutral | positive |
| 0.547 | 0.326 | 0.126 |
| Raw frequency | 48 |
| Normalized frequency | 0.327 |
| Modifier score | 0.500 |
| Perplexity | 47.217 |