Based on prior knowledge:

LBBB (Left bundle branch block) is a defect in the electrical conduction system of the heart, which can be detected through an electrocardiogram (ECG). LBBB can affect the heart's pumping efficiency and can lead to various complications, including chronic heart failure.

To analyze the relationship between the feature "n_p_ecg_p_08" (LBBB on ECG at the time of admission) and the task of determining whether the patient shows chronic heart failure, we can consider the following:

1. If the value of "n_p_ecg_p_08" is "no," it means that the patient did not have LBBB on ECG at the time of admission. In this case, it is less likely for the patient to have chronic heart failure, as LBBB is one of the risk factors for developing heart failure. Therefore, this value indicates a lower likelihood of chronic heart failure.

2. If the value of "n_p_ecg_p_08" is "yes," it means that the patient had LBBB on ECG at the time of admission. This suggests a higher possibility of chronic heart failure, as LBBB can lead to impaired cardiac function and increased risk of heart failure.

Based on this analysis, we can create the dictionary as follows:

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

Note that the values in the lists are represented as strings. Since the feature "n_p_ecg_p_08" is a categorical variable, there are only two possible values: "no" and "yes." In this case, both lists contain only one value each, indicating the possible values of the feature for each target class.