Based on my prior knowledge, I can analyze the relationship between the feature "nr_03" (Paroxysms of atrial fibrillation in the anamnesis) and the presence of chronic heart failure.

In medical terms, paroxysms of atrial fibrillation are rapid and irregular heartbeats that occur intermittently. Atrial fibrillation is a known risk factor for chronic heart failure, but it does not necessarily guarantee its presence.

To analyze the relationship between "nr_03" and the presence of chronic heart failure, we need to gather data on patients who have experienced both myocardial infarction complications and chronic heart failure. From this data, we can observe the frequency of "nr_03" values and identify any patterns or trends.

Unfortunately, without access to specific data or prior knowledge about the relationship between "nr_03" and chronic heart failure in myocardial infarction patients, it is challenging to make a conclusive analysis.

However, to create the desired dictionary, I can assume that patients without chronic heart failure are less likely to have a history of paroxysms of atrial fibrillation. Therefore, I will categorize the "nr_03" values as follows:

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

Please note that this assumption is based on general knowledge and may not reflect the actual relationship between "nr_03" and chronic heart failure in myocardial infarction patients.