Based on my prior knowledge, paroxysms of atrial fibrillation in the anamnesis (feature nr_03) can be a possible indicator of chronic heart failure in patients with myocardial infarction complications. Atrial fibrillation is a common arrhythmia associated with heart failure and can be a chronic condition.

Based on this analysis, I will generate a dictionary that represents the relationship between the feature nr_03 and the presence of chronic heart failure in patients with myocardial infarction complications.

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

Explanation:
- If the value of feature nr_03 is "no", it indicates that there are no paroxysms of atrial fibrillation in the anamnesis. This suggests that the patient does not have a history of atrial fibrillation and may not have chronic heart failure.
- If the value of feature nr_03 is "yes", it indicates that there are paroxysms of atrial fibrillation in the anamnesis. This suggests that the patient has a history of atrial fibrillation and may have chronic heart failure.

Please note that this analysis is based on general knowledge and assumptions. The relationship between the feature nr_03 and chronic heart failure may vary depending on the specific context and dataset.