Based on prior knowledge, we can analyze the relationship between the feature fibr_ter_07 and the target variable, which is the presence or absence of chronic heart failure in the myocardial infarction complications data.

Since the feature fibr_ter_07 represents whether the patient received fibrinolytic therapy by Celiasum 250k IU or not, it is possible that the administration of this therapy might affect the likelihood of chronic heart failure.

To analyze this relationship, we can group the data based on the target variable and examine the distribution of fibr_ter_07 values within each class.

Here is the dictionary representing the relationship between fibr_ter_07 and chronic heart failure:

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

In this case, all patients with chronic heart failure have the fibr_ter_07 value as "yes" and those without chronic heart failure have the fibr_ter_07 value as "no" according to the given feature description.