Based on prior knowledge, the resting electrocardiogram (ECG) results can provide valuable information about a patient's heart condition. Here is a potential analysis of the relationship between the RestingECG feature and the task of determining whether a coronary angiography shows heart disease:

1. Normal (RestingECG = 'Normal'): If the RestingECG result is normal, it indicates that the ECG reading during rest is within the normal range. This is a good sign and may suggest a lower likelihood of heart disease. It is possible that patients with a normal RestingECG result are more likely to have a negative coronary angiography result (no heart disease).

2. ST (RestingECG = 'ST'): The presence of ST elevation or depression on the ECG reading may indicate cardiac ischemia, which can be associated with heart disease. Therefore, patients with ST abnormalities might be more likely to have a positive coronary angiography result (heart disease).

3. LVH (RestingECG = 'LVH'): LVH stands for "Left Ventricular Hypertrophy" and is typically caused by an increased workload on the heart. It is associated with various heart conditions, including heart disease. Therefore, patients with LVH on their RestingECG may have a higher chance of showing heart disease on coronary angiography.

Based on the analysis, the possible values for each target class are:

```json
{
	"no": ["Normal"],
	"yes": ["ST", "LVH"]
}
```