After analyzing the relationship between the feature "poutcome" and the task of whether the client subscribes to a term deposit, we can create the following dictionary:

```json
{
	"no": ["unknown", "failure"],
	"yes": ["success"]
}
```

Here we consider the values of the "poutcome" feature that have a clear relationship with the target variable. In this case, the clients whose previous marketing campaign outcome was either "unknown" or "failure" are less likely to subscribe to a term deposit, while the clients whose previous marketing campaign outcome was "success" are more likely to subscribe to a term deposit.