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

Since the feature "SIM_GIPERT" is a categorical variable with categories "no" and "yes", it is directly indicative of the presence or absence of symptomatic hypertension. In this case, chronic heart failure is likely to be present if the feature value is "yes" and unlikely to be present if the feature value is "no".