```json
{
    "no": ["Normal"], 
    "yes": ["ST", "LVH"]
}
```
Based on prior knowledge, it is observed that patients with a RestingECG value of "Normal" are less likely to show heart disease. On the other hand, patients with a RestingECG value of "ST" or "LVH" are more likely to show heart disease. Therefore, the "no" class is associated with RestingECG value "Normal" and the "yes" class is associated with RestingECG values "ST" and "LVH".