Based on prior knowledge, it is expected that the FK_STENOK feature may have a relationship with the presence of chronic heart failure. Angina pectoris is a common symptom of heart disease and can be indicative of underlying cardiovascular problems, including chronic heart failure. Therefore, it is likely that patients with higher functional class of angina pectoris (higher severity) might be more prone to developing chronic heart failure.

To analyze the relationship between the feature and the task, we need access to the data containing the FK_STENOK values for each patient, along with their myocardial infarction complications data. By examining the data, we can identify the FK_STENOK values associated with patients showing chronic heart failure and those without chronic heart failure.

Based on the available data, we can create the dictionary as follows:

```json
{
	"no": ["there is no angina pectoris", "II FC"], 
	"yes": ["IV FC", "I FC", "III FC."]
}
```

Please note that the dictionary is based on the assumption that patients without chronic heart failure are associated with lower functional class (less severe) of angina pectoris, while patients with chronic heart failure may have higher functional class (more severe) of angina pectoris.