Based on prior knowledge, the plasma glucose concentration at 2 hours in an oral glucose tolerance test is commonly used to diagnose diabetes. A normal range for this test is typically between 70 and 140 milligrams per deciliter (mg/dL), with values above 140 mg/dL indicating diabetes.

To analyze the relationship between the feature "Glucose" and the task of determining if a person has diabetes, we can divide the glucose values into two categories: "yes" for people with diabetes and "no" for people without diabetes.

Here is the dictionary representing the relationship between the feature "Glucose" and the task:

```json
{
	"yes": [200.0, 185.0, 178.0, 168.0, 160.0],
	"no": [90.0, 100.0, 95.0, 80.0, 75.0]
}
```

The above dictionary suggests that people with diabetes (target class "yes") tend to have higher glucose values, while those without diabetes (target class "no") tend to have lower glucose values. The provided glucose values in the dictionary are just examples and may not represent the entire range of possible values for each class, but they give an indication of the typical glucose values for each target class.