Based on my prior knowledge, paroxysms of atrial fibrillation in the anamnesis (feature nr_03) can be an indicator of chronic heart failure. Atrial fibrillation is a common complication of chronic heart failure, and the presence of paroxysms can suggest a higher likelihood of chronic heart failure.

To create the dictionary, I will need to analyze the relationship between feature nr_03 and the presence of chronic heart failure in the myocardial infarction complications data.

Here is the analysis of the relationship between the feature and the target variable:

- For the target class "no" (no chronic heart failure), the possible values of feature nr_03 are:
  - "no": If the patient does not have a history of paroxysms of atrial fibrillation in the anamnesis, it indicates that they do not have chronic heart failure.
  
- For the target class "yes" (chronic heart failure), the possible values of feature nr_03 are:
  - "yes": If the patient has a history of paroxysms of atrial fibrillation in the anamnesis, it suggests that they have chronic heart failure.

Based on this analysis, the dictionary can be generated as follows:

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

Note: As there are only two categories for feature nr_03 ("no" and "yes"), the lists for each target class contain only one value each.