| often | 4 | degree |
| following a heart attack | 3 | temporal |
| following cardiac surgery | 2 | temporal |
| pacemaker → be → necessary | 11 |
| pacemaker → be → recommended | 6 |
| pacemaker → be → required | 4 |
| negative | neutral | positive |
| 0.316 | 0.596 | 0.088 |
| Raw frequency | 21 |
| Normalized frequency | 0.503 |
| Modifier score | 0.740 |
| Perplexity | 193.204 |