```json
{
	"no": ["no"],
	"yes": ["yes"]
}
```
Based on the given feature description, the feature "n_r_ecg_p_05" represents the presence or absence of paroxysms of atrial fibrillation on an ECG at the time of admission to the hospital. Since the feature is a categorical variable with two categories: "no" and "yes", we can directly map the values to the target classes: "no" for no chronic heart failure and "yes" for chronic heart failure. There are no other possible values for this feature. Therefore, the dictionary includes the categories "no" and "yes" with their respective values ["no"] and ["yes"].