| into vertical wells | 4 | transitive-object |
| sometimes | 2 | degree |
| steam → be → gas | 18 |
| steam → be heated by → natural gas | 4 |
| steam → be created by → natural gas | 3 |
| negative | neutral | positive |
| 0.136 | 0.729 | 0.135 |
| Raw frequency | 25 |
| Normalized frequency | 0.509 |
| Modifier score | 0.400 |
| Perplexity | 144.786 |