| Typicality: | 0.351 |
| Saliency: | 0.442 |
| over the 100 years | 5 | temporal |
| landfill → produce → gas | 6 |
| landfill → generate → gas | 3 |
| landfill → generate → landfill gas | 3 |
| landfill → produce → landfill gas | 3 |
| negative | neutral | positive |
| 0.523 | 0.435 | 0.043 |
| Raw frequency | 15 |
| Normalized frequency | 0.442 |
| Modifier score | 0.500 |
| Perplexity | 132.514 |