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

Based on the description of the feature n_p_ecg_p_06, which represents the presence of Third-degree AV block on ECG at the time of admission to the hospital, it can be assumed that if the value is "no", it indicates the absence of Third-degree AV block and if the value is "yes", it indicates the presence of Third-degree AV block.

To determine if the myocardial infarction complications data of the patient show chronic heart failure, we need to analyze the relationship between the feature n_p_ecg_p_06 and the presence or absence of chronic heart failure. However, no further information is provided about chronic heart failure or any other relevant variables. In this case, it is not possible to directly answer the question with just the given information.