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

In this case, the feature "n_r_ecg_p_08" has two possible values: "no" and "yes". For the target class "no" (indicating no chronic heart failure), the only possible value for this feature is "no". For the target class "yes" (indicating chronic heart failure), the only possible value for this feature is "yes". Therefore, the dictionary includes lists with the respective values for each target class.