A higher White blood cell count can indicate inflammation or infection in the body. Chronic heart failure may lead to a higher white blood cell count due to inflammation that can occur in the heart.

Based on this prior knowledge, we can analyze the relationship between the feature L_BLOOD (White blood cell count) and the target variable (presence of chronic heart failure complications). 

The analysis will involve examining the White blood cell count values for both the "no" and "yes" classes of chronic heart failure complications.

Here is the dictionary with the requested information:
```json
{
	"no": [4.9, 5.2, 4.7, 4.5, 5.3],
	"yes": [6.8, 6.5, 7.2, 6.9, 7.1]
}
```
The numeric values provided are possible examples of White blood cell counts for each target class.