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

Based on the feature description and task, it appears that the presence or absence of incomplete right bundle branch block (RBBB) on an electrocardiogram (ECG) at the time of admission to the hospital is being used to determine if the patient has chronic heart failure.

For the target class 'no', the only possible value for the feature 'n_p_ecg_p_11' is 'no', indicating that there is no incomplete RBBB present on the ECG.

For the target class 'yes', the only possible value for the feature 'n_p_ecg_p_11' is 'yes', indicating that there is incomplete RBBB present on the ECG.

Since there are no other possible values mentioned for this feature, the dictionary includes only the values "no" and "yes", corresponding to the target classes 'no' and 'yes' respectively.