| from a number of energy sources | 8 | other |
| in order to certified | 6 | purpose |
| from different activities | 2 | other |
| doctor → can → choose | 37 |
| doctor → be able to → choose | 8 |
| doctor → could → choose | 6 |
| negative | neutral | positive |
| 0.109 | 0.749 | 0.143 |
| Raw frequency | 51 |
| Normalized frequency | 0.433 |
| Modifier score | 0.500 |
| Perplexity | 248.156 |