Based on prior knowledge, chronic bronchitis in the anamnesis (feature: zab_leg_01) is not directly related to chronic heart failure. However, chronic bronchitis can contribute to heart failure if left untreated or poorly managed.

To analyze the relationship between the feature and the target variable (presence of chronic heart failure), we can examine the distribution of zab_leg_01 values for each target class.

Here is the dictionary:

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

Since the feature "zab_leg_01" is a binary categorical variable with values 'no' and 'yes', we can simply include those as the possible values for each target class.