Based on prior knowledge, Oldpeak represents the ST depression induced by exercise relative to rest in the coronary angiography. Typically, higher values of Oldpeak indicate a higher risk of heart disease. To analyze the relationship between Oldpeak and the presence of heart disease, we can look at typical Oldpeak values for both classes ('no' and 'yes').

For the target class 'no' (indicating no heart disease), the typical Oldpeak values could include:
- 0.0
- 0.5
- 1.0
- 1.5
- 2.0

For the target class 'yes' (indicating heart disease), the typical Oldpeak values could include:
- 3.0
- 3.5
- 4.0
- 4.5
- 5.0

Based on this analysis, the dictionary can be formed as follows:

```json
{
	"no": [0.0, 0.5, 1.0, 1.5, 2.0],
	"yes": [3.0, 3.5, 4.0, 4.5, 5.0]
}
```