| in combination | 4 | other |
| usually | 3 | degree |
| electrode → be made of → nickel | 7 |
| electrode → be → nickel | 4 |
| electrode → include → nickel | 4 |
| electrode → be composed of → nickel | 3 |
| negative | neutral | positive |
| 0.036 | 0.845 | 0.119 |
| Raw frequency | 18 |
| Normalized frequency | 0.352 |
| Modifier score | 0.733 |
| Perplexity | 174.582 |