Based on prior knowledge, normal diastolic blood pressure ranges from 60 to 80 mm Hg. Hypertension, which is a risk factor for diabetes, is defined as having a diastolic blood pressure equal to or above 90 mm Hg. With this information, we can analyze the relationship between the BloodPressure feature and the task of determining whether a person has diabetes.

For the analysis, we will assume that lower diastolic blood pressure values generally indicate a lower likelihood of having diabetes, while higher values indicate a higher likelihood.

Here is the dictionary with the relationship between the BloodPressure feature and the task of having diabetes:

```json
{
	"yes": [90.5, 95.2, 93.6, 98.1, 92.7],
	"no": [75.3, 79.8, 76.1, 77.4, 78.9]
}
```

Please note that the specific values provided are arbitrary examples and may not reflect real data. However, they demonstrate the concept of how the BloodPressure feature could be related to the task.