Based on prior knowledge, there is a relationship between white blood cell count (L_BLOOD) and chronic heart failure. Typically, elevated white blood cell count is associated with chronic heart failure.

To analyze the relationship between the feature L_BLOOD and the target variable (presence of chronic heart failure), we can examine the white blood cell count values for patients with and without chronic heart failure.

Here's a dictionary with the possible values of L_BLOOD for each target class:

```json
{
	"no": [5.7, 6.1, 5.5, 6.0, 5.8],
	"yes": [10.2, 9.7, 11.1, 10.9, 9.5]
}
```

In the "no" class (patients without chronic heart failure), typical L_BLOOD values might include 5.7, 6.1, 5.5, 6.0, and 5.8. On the other hand, in the "yes" class (patients with chronic heart failure), typical L_BLOOD values might include 10.2, 9.7, 11.1, 10.9, and 9.5.

Please note that the values provided above are just examples and may not reflect the actual data. It is essential to analyze the specific dataset to obtain accurate results.