```json
{
	"no": ["no"],
	"yes": ["yes"]
}
```
In this case, the feature "n_p_ecg_p_03" has two possible categories: "no" and "yes". 
For the task of determining whether the patient shows chronic heart failure, the feature value does not have a strong relationship or clear pattern with the target. Both categories appear to occur for patients with or without chronic heart failure, so it is not possible to predict the presence of chronic heart failure based solely on this feature.