### Analysis:

To determine if the myocardial infarction complications data of a patient shows chronic heart failure, we need to analyze the relationship between the feature "n_p_ecg_p_11" and the target variable.

The feature "n_p_ecg_p_11" represents the presence of incomplete right bundle branch block (RBBB) on the electrocardiogram (ECG) at the time of admission to the hospital. RBBB is a heart condition characterized by delayed electrical conduction within the heart that affects the right bundle branch. It can be identified through specific patterns on the ECG.

Now, let's analyze the relationship between the feature "n_p_ecg_p_11" and the presence of chronic heart failure:

- If the value of "n_p_ecg_p_11" is "no", it indicates that there was no incomplete RBBB on the ECG at the time of admission to the hospital. This suggests that the patient did not show signs of incomplete RBBB and there is a possibility that they may not have chronic heart failure. However, it does not completely rule out the presence of chronic heart failure, as it can still be present in the absence of incomplete RBBB.

- If the value of "n_p_ecg_p_11" is "yes", it indicates that there was incomplete RBBB on the ECG at the time of admission to the hospital. This suggests that the patient shows signs of incomplete RBBB, which can be associated with various cardiac conditions. Chronic heart failure can be one of those conditions, but it is not definitive proof. Further evaluation and tests may be required to confirm the presence of chronic heart failure.

Based on this analysis, we can create a dictionary with the possible values of the feature "n_p_ecg_p_11" for each target class:

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

In this case, we only have one value for each target class, "no" and "yes" respectively, as those are the only possible categories for the feature "n_p_ecg_p_11". The dictionary indicates that the feature value "no" is associated with the target class "no" and the feature value "yes" is associated with the target class "yes".