Based on prior knowledge, we can infer that a heart rate below 60 is generally an indication of bradycardia, which is a low heart rate. This feature (ritm_ecg_p_08) has two categories - 'no' and 'yes'. It is likely that the 'no' category represents patients without chronic heart failure (no bradycardia), while the 'yes' category represents patients with chronic heart failure (bradycardia).

To create the requested dictionary, we will analyze the relationship between the feature and the target variable and classify the possible values of ritm_ecg_p_08 for each target class.

Here's the dictionary for the given feature and task:

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

Since the feature only has two categories, 'no' and 'yes', we include these values in the respective lists for each target class.