| for using the standard frank leads | 5 | purpose |
| to perform additional functions | 4 | purpose |
| electrode → be → required | 16 |
| electrode → be → necessary | 16 |
| electrode → be → desired | 4 |
| negative | neutral | positive |
| 0.074 | 0.745 | 0.181 |
| Raw frequency | 36 |
| Normalized frequency | 0.488 |
| Modifier score | 0.100 |
| Perplexity | 36.326 |