| fuel cell → be → flexible | 6 |
| fuel cell → allow with → their characteristic fuel flexibility | 3 |
| fuel cell → provide → fuel flexibility | 3 |
| negative | neutral | positive |
| 0.021 | 0.397 | 0.582 |
| Raw frequency | 12 |
| Normalized frequency | 0.279 |
| Modifier score | 0.500 |
| Perplexity | 162.758 |