Based on my prior knowledge, I will analyze the relationship between the feature AST_BLOOD and the occurrence of chronic heart failure.

AST_BLOOD, or Serum AsAT content, is a laboratory test that measures the level of aspartate aminotransferase (AST) in the blood. AST is an enzyme found in various tissues, including the heart, liver, muscles, and red blood cells. Elevated levels of AST in the blood can indicate damage to these tissues.

To determine the appropriate ranges of values, I will consider the typical reference range for AST levels in adults, which is usually between 5 and 40 units per liter (U/L) of blood. Values above this range might suggest the presence of tissue damage.

Now, let's analyze the relationship between AST_BLOOD values and the occurrence of chronic heart failure:

- For the 'no' target class (indicating no chronic heart failure), I will consider values within the reference range of 5 to 40 U/L as typical. Here are five possible AST_BLOOD values for this class: [10.0, 15.5, 20.2, 30.8, 35.9].

- For the 'yes' target class (indicating chronic heart failure), I will consider values above the reference range as typical. Here are five possible AST_BLOOD values for this class: [45.7, 50.3, 55.1, 60.6, 65.9].

Based on this analysis, I will create a dictionary with the specified format:

```json
{
	"no": [10.0, 15.5, 20.2, 30.8, 35.9],
	"yes": [45.7, 50.3, 55.1, 60.6, 65.9]
}
```