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

Based on the feature description and task, the feature `fibr_ter_03` represents whether the patient received Fibrinolytic therapy by Celiasum 3m IU. The target variable is whether the myocardial infarction complications data shows chronic heart failure.

Since the feature `fibr_ter_03` has only two categories ['no', 'yes'], the possible values of `fibr_ter_03` for each target class are as follows:

- For the target class `no`, the possible values of `fibr_ter_03` are ['no'].
- For the target class `yes`, the possible values of `fibr_ter_03` are ['yes'].

There are no other values for `fibr_ter_03` mentioned in the feature description, so the respective lists for each target class are not empty.