| in certain embodiments | 2 | other |
| electrode → have → surface | 8 |
| electrode → have → outer surface | 4 |
| electrode → form → surface | 3 |
| electrode → have → major surface | 3 |
| negative | neutral | positive |
| 0.048 | 0.888 | 0.064 |
| Raw frequency | 18 |
| Normalized frequency | 0.352 |
| Modifier score | 0.500 |
| Perplexity | 206.250 |