| for all athletes | 3 | other |
| to interpret abnormal levels | 2 | purpose |
| for myocardial ischemia | 2 | purpose |
| ecg → be → required | 5 |
| ecg → be → necessary | 4 |
| ecg → be → mandatory | 3 |
| negative | neutral | positive |
| 0.172 | 0.744 | 0.084 |
| Raw frequency | 12 |
| Normalized frequency | 0.412 |
| Modifier score | 0.500 |
| Perplexity | 132.081 |