Based on prior knowledge, it is expected that the functional class of angina pectoris (FK_STENOK) may have a relationship with the presence of chronic heart failure (the target variable). It is likely that higher functional class of angina pectoris may be associated with a higher likelihood of chronic heart failure.

Here is the dictionary based on the analysis:

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

In this case, it is assumed that patients with functional class of angina pectoris labeled as "there is no angina pectoris", "II FC", or "I FC" are less likely to have chronic heart failure (target class "no"). On the other hand, patients labeled as "IV FC" or "III FC." are more likely to have chronic heart failure (target class "yes").

Please note that the values in the dictionary are based on the assumption and analysis. If the relationship between the feature and target class is not well-defined or hard to predict for certain values, it is not included in the dictionary.