Based on my prior knowledge, ventricular paroxysmal tachycardia in the anamnesis (feature nr_08) can be a risk factor for chronic heart failure. Therefore, there is a possibility that patients with a history of ventricular paroxysmal tachycardia may have chronic heart failure. To analyze the relationship between feature nr_08 and the presence of chronic heart failure, we can examine the distribution of the feature among patients with and without chronic heart failure.

Here is the requested dictionary representing the relationship between the feature nr_08 and the presence of chronic heart failure:

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

Note that in this case, the feature nr_08 only has two possible values: "no" and "yes". Since both values are easy to predict and directly correspond to the presence or absence of chronic heart failure, we can include both values in the dictionary. The values are presented as strings within lists for each target class.