Based on my prior knowledge, symptomatic hypertension (SIM_GIPERT) can be a risk factor for chronic heart failure. 

To analyze the relationship between SIM_GIPERT and chronic heart failure, we can examine the distribution of SIM_GIPERT values for patients with and without chronic heart failure. 

Here is the analysis dictionary:

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

Explanation:
- For patients without chronic heart failure, the SIM_GIPERT feature has only one possible value: "no".
- For patients with chronic heart failure, the SIM_GIPERT feature can have two possible values: "no" or "yes".

It's important to note that this analysis assumes that the SIM_GIPERT feature is categorical with two possible categories: "no" and "yes". If there are additional category values for the SIM_GIPERT feature, they may need to be included in the analysis as well.