Based on prior knowledge, the relationship between diastolic blood pressure (BloodPressure) and the task of determining whether a person has diabetes can be analyzed by comparing the average diastolic blood pressure values for people with and without diabetes. Typically, higher diastolic blood pressure can be associated with the presence of diabetes.

To analyze the relationship, we can examine the range of diastolic blood pressure values for individuals with and without diabetes. Here is an example dictionary containing the typical diastolic blood pressure values for each target class:

```json
{
  "yes": [85.0, 90.0, 95.0, 100.0, 105.0],
  "no": [70.0, 75.0, 80.0, 85.0, 90.0]
}
```

Please note that these values are for illustrative purposes only and can vary depending on the specific dataset and population studied.