Based on prior knowledge, premature ventricular contractions (PVCs) in the anamnesis refers to abnormal heartbeats that start in the lower chambers of the heart (ventricles) and occur before the regular heartbeat. PVCs can be a symptom or a risk factor for different heart conditions, including heart failure. Therefore, it is possible that the presence of PVCs in the anamnesis may indicate a higher likelihood of chronic heart failure.

To analyze the relationship between the feature nr_02 (Premature ventricular contractions in the anamnesis) and the occurrence of chronic heart failure, we need to examine the myocardial infarction complications data for patients with and without chronic heart failure.

Based on the analysis, we can create the following dictionary:

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

Explanation:
- For patients without chronic heart failure (target class 'no'), the possible values for feature nr_02 are 'no'.
- For patients with chronic heart failure (target class 'yes'), the possible values for feature nr_02 are 'no' and 'yes'.