```json
{
	"no": ["yes"],
	"yes": ["no"]
}
```
Based on the provided feature description, it appears that the feature "n_p_ecg_p_10" represents the presence or absence of Complete LBBB (Left Bundle Branch Block) on the ECG at the time of admission to the hospital. To analyze the relationship between this feature and the presence of chronic heart failure in the patient, we need to consider the association between Complete LBBB and chronic heart failure.

Complete LBBB is a conduction abnormality in the heart, where the electrical signals are delayed or blocked in the left bundle branch of the heart's electrical system. It is not directly indicative of chronic heart failure, but it can be seen in individuals with chronic heart failure due to underlying heart muscle damage or other cardiac conditions.

Since the question asks whether the data shows chronic heart failure, we cannot definitively determine the presence of chronic heart failure solely based on the presence of Complete LBBB. Therefore, the relationship between the feature "n_p_ecg_p_10" and chronic heart failure is uncertain.

In this case, the data from the patient does not provide enough information to determine the presence or absence of chronic heart failure based solely on the feature "n_p_ecg_p_10". The possible values of "n_p_ecg_p_10" for the target class "no" are ["yes"], and the possible values for the target class "yes" are ["no"].