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

Based on the feature description, the fibr_ter_07 feature has two possible values: "no" and "yes". 

Since the task is to determine if the myocardial infarction complications data of this patient show chronic heart failure, we can analyze the relationship between the feature and target. 

If the fibr_ter_07 value is "no", it means that the patient did not receive Fibrinolytic therapy by Celiasum 250k IU. This could indicate that the patient does not have chronic heart failure.

If the fibr_ter_07 value is "yes", it means that the patient received Fibrinolytic therapy by Celiasum 250k IU. This could indicate that the patient has chronic heart failure.

Since the target variable is whether or not the patient has chronic heart failure, it is expected that the patients with target class "no" would have the value "no" for fibr_ter_07, and patients with target class "yes" would have the value "yes" for fibr_ter_07.