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

Based on prior knowledge, clients who have credit in default are more likely to subscribe to a term deposit compared to clients who do not have credit in default. Therefore, the only possible value for the "default" feature in the "no" class is "no", and the only possible value for the "default" feature in the "yes" class is "yes".