Based on my prior knowledge, the quantity of myocardial infarctions in the anamnesis (INF_ANAM) can be an important factor in determining if a patient has chronic heart failure. 

To analyze the relationship between the feature and the task, we can look at the INF_ANAM values for patients with and without chronic heart failure. Let's assume 'yes' represents the presence of chronic heart failure and 'no' represents the absence of chronic heart failure.

Here is an example dictionary based on the analysis:

```json
{
	"no": ["zero", "one"],  
	"yes": ["two", "three and more"]
}
```

In this case, patients with no chronic heart failure tend to have either zero or one myocardial infarctions in the anamnesis, while patients with chronic heart failure tend to have either two or more than two myocardial infarctions in the anamnesis.

Please note that this dictionary is just an example based on the information provided. The actual values may vary depending on the specific dataset and analysis results.