Based on my prior knowledge, I will analyze the relationship between the feature AST_BLOOD (Serum AsAT content) and the task of determining whether the patient shows chronic heart failure or not.

AST_BLOOD is an enzyme found in various tissues of the body, including the heart, liver, and muscles. Elevated levels of AST_BLOOD in the blood may indicate damage to these tissues. In the context of chronic heart failure, AST_BLOOD levels are often elevated due to heart muscle damage.

To analyze the relationship, I will compare the AST_BLOOD values in patients with chronic heart failure (target class: yes) and patients without chronic heart failure (target class: no). I will look for typical ranges of AST_BLOOD values for each target class.

Based on my analysis, the dictionary with the information will be as follows:

```json
{
	"no": [15.0, 20.0, 24.0, 30.0, 35.0],
	"yes": [25.0, 35.0, 40.0, 45.0, 50.0]
}
```

In the "no" target class, typical AST_BLOOD values range from around 15.0 to 35.0. In the "yes" target class, typical AST_BLOOD values range from around 25.0 to 50.0. These ranges are approximate and may vary depending on the specific dataset and context.