After analyzing the relationship between feature nr_08 (Ventricular paroxysmal tachycardia in the anamnesis) and the occurrence of chronic heart failure in myocardial infarction patients, the following dictionary can be created:

```json
{
	"no": ["no"],
	"yes": ["yes"]
}
```

The feature nr_08 has categorical values of "no" and "yes". Based on the analysis, the patients who do not have Ventricular paroxysmal tachycardia in the anamnesis (nr_08 = "no") are unlikely to show chronic heart failure (target class "no"), while patients who have a history of Ventricular paroxysmal tachycardia (nr_08 = "yes") may be more likely to have chronic heart failure (target class "yes").

Please note that this analysis assumes that there is a relationship between Ventricular paroxysmal tachycardia in the anamnesis and chronic heart failure in myocardial infarction patients.