Based on my prior knowledge, ventricular paroxysmal tachycardia in the anamnesis (feature nr_08) can be a significant indicator of chronic heart failure. Ventricular tachycardia is a fast heart rate that starts in the heart's lower chambers (ventricles). It can be a life-threatening condition and is often a symptom of heart disease.

To analyze the relationship between feature nr_08 and the presence of chronic heart failure, we need to evaluate the distribution of the feature within each target class (yes - chronic heart failure, no - no chronic heart failure).

Here's the dictionary with the feature values for each target class:

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

Explanation:
- For the target class "no" (no chronic heart failure), the feature value is predominantly "no". This suggests that patients without chronic heart failure tend to have no ventricular paroxysmal tachycardia in their medical history.
- For the target class "yes" (chronic heart failure), we observe both values "no" and "yes" for the feature nr_08, indicating that chronic heart failure can be present irrespective of the occurrence of ventricular paroxysmal tachycardia.

Please note that the values in the dictionary are presented as strings in lists, as requested.