Based on my prior knowledge, the presence of Complete LBBB (Left Bundle Branch Block) on an electrocardiogram (ECG) can be indicative of myocardial infarction complications and may also be associated with chronic heart failure.

To analyze the relationship between the feature "n_p_ecg_p_10" (Complete LBBB on ECG at the time of admission to the hospital) and the presence of chronic heart failure as the target variable, we can generate the following dictionary:

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

In this case, the feature "n_p_ecg_p_10" has two possible categories: "no" and "yes". While it is challenging to predict the relationship between the feature and target with certainty, it is reasonable to assume that if the patient presents Complete LBBB on the ECG at the time of admission to the hospital, there may be a higher likelihood of chronic heart failure. Thus, we include both "no" and "yes" categories in the dictionary, as both can potentially indicate chronic heart failure.