| in areas with poor sanitation | 4 | location |
| especially | 3 | degree |
| in 2004 | 2 | temporal |
| problem → be → prominent | 6 |
| problem → become → prominent | 3 |
| negative | neutral | positive |
| 0.787 | 0.203 | 0.010 |
| Raw frequency | 9 |
| Normalized frequency | 0.176 |
| Modifier score | 0.500 |
| Perplexity | 142.318 |