Based on prior knowledge, diastolic blood pressure (D_AD_ORIT) can be used as a feature to analyze whether the patient shows chronic heart failure. Typically, patients with chronic heart failure might have higher diastolic blood pressure values compared to those without chronic heart failure.

To analyze the relationship between D_AD_ORIT and chronic heart failure, we can examine the average diastolic blood pressure values for patients with and without chronic heart failure. Based on this analysis, we can identify ranges of values that are more commonly associated with each target class ('no' or 'yes').

Here is a dictionary representing the analysis:

```json
{
    "no": [60.0, 65.0, 70.0, 75.0, 80.0],
    "yes": [75.0, 80.0, 85.0, 90.0, 95.0]
}
```

In this dictionary, the key "no" represents the target class "no" (indicating no chronic heart failure), and the key "yes" represents the target class "yes" (indicating chronic heart failure). The values associated with each key are a list of 5 typical D_AD_ORIT values for patients in that target class.

Please note that these values are for demonstration purposes only and should not be used as definitive thresholds. The actual ranges should be determined based on expert knowledge and possibly in consultation with medical professionals.