| way under the ground | 6 | location |
| beneath the ice | 5 | location |
| a possibility that is | 4 | other |
| methane → be → trapped | 18 |
| methane → become → trapped | 6 |
| methane → gets → trapped | 3 |
| negative | neutral | positive |
| 0.337 | 0.578 | 0.085 |
| Raw frequency | 27 |
| Normalized frequency | 0.466 |
| Modifier score | 0.700 |
| Perplexity | 105.952 |