```json
{
    "no": ["no"],
    "yes": ["yes"]
}
```
The relationship between the feature "SIM_GIPERT" (Symptomatic hypertension) and the task of determining chronic heart failure is straightforward. In this case, the feature describes the presence or absence of symptomatic hypertension. From the given feature description, we can determine that if the value of "SIM_GIPERT" is "yes", it indicates the presence of symptomatic hypertension. Thus, if the myocardial infarction complications data of this patient shows chronic heart failure, the value of "SIM_GIPERT" should be "yes". Conversely, if the patient does not have chronic heart failure, the value of "SIM_GIPERT" should be "no".

Since "SIM_GIPERT" is a categorical variable with only two possible categories ('no', 'yes'), the dictionary can be simplified to represent these categories as the possible values for each target class.