After analyzing the relationship between the "campaign" feature and the task of determining whether a client subscribes to a term deposit, we can create a dictionary to showcase the possible values of the "campaign" feature for each target class.

```json
{
	"no": [1.0, 2.0, 3.0, 4.0, 5.0],
	"yes": [1.0, 2.0, 3.0, 4.0, 5.0]
}
```
In this dictionary, we have included 5 typical campaign values for each target class ('no', 'yes').