| from a leak with officials | 9 | other |
| by escaping gas | 6 | manner |
| deliberately | 4 | manner |
| explosion → be → caused | 50 |
| explosion → be likely to → caused | 3 |
| explosion → be → the cause | 3 |
| negative | neutral | positive |
| 0.611 | 0.373 | 0.016 |
| Raw frequency | 56 |
| Normalized frequency | 0.502 |
| Modifier score | 0.900 |
| Perplexity | 380.926 |