Based on prior knowledge, the relationship between the feature "ROE" (Erythrocyte sedimentation rate) and the task of determining chronic heart failure can vary. However, the Erythrocyte sedimentation rate is generally used as a marker of inflammation in the body.

To analyze the relationship between ROE and chronic heart failure, we can consider typical reference ranges for the Erythrocyte sedimentation rate:

1. Normal range: 0-15 mm/hr
2. Mild elevation: 15-29 mm/hr
3. Moderate elevation: 30-59 mm/hr
4. Significant elevation: 60-99 mm/hr
5. Very high elevation: >=100 mm/hr

We can now create a dictionary with the typical ROE values for each target class:

```json
{
	"no": [0.0, 5.0, 10.0, 12.5, 14.5],
	"yes": [20.0, 35.0, 50.0, 65.0, 85.0]
}
```

This dictionary indicates that for the "no" class (patients without chronic heart failure), typical ROE values range from 0.0 to 14.5 mm/hr. On the other hand, for the "yes" class (patients with chronic heart failure), typical ROE values range from 20.0 to 85.0 mm/hr.

Note that these are only typical values and there may be variations depending on individual cases. It is important to consult with a medical professional for an accurate diagnosis.