After analyzing the feature "FK_STENOK" and the task of determining if the myocardial infarction complications data shows chronic heart failure, we can assume the following relationship between the feature and the target:

**Functional class of angina pectoris in the last year (FK_STENOK)**:
- "there is no angina pectoris" category: This category is less likely to be associated with chronic heart failure.
- "II FC" and "IV FC" categories: These categories are more likely to be associated with chronic heart failure.
- "I FC" and "III FC" categories: The relationship with chronic heart failure is less clear and hard to predict.

Based on this analysis, the dictionary representation would be as follows:

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

Please note that the categories "I FC" and "III FC" are omitted from the dictionary as their relationship with chronic heart failure was less clear.