Based on prior knowledge, I can analyze the relationship between the feature "duration" and the task of whether the client subscribes to a term deposit or not.

Typically, a longer duration of the last contact may indicate a higher level of engagement with the client, which could potentially lead to a higher likelihood of subscribing to a term deposit. On the other hand, a shorter duration may indicate less interest or engagement.

Here is the analysis and the dictionary based on this relationship:

```json
{
	"no": [107.0, 368.0, 225.0, 248.0, 285.0],  
	"yes": [157.0, 267.0, 139.0, 254.0, 112.0]
}
```

In the dictionary, "no" represents the target class where the client did not subscribe to a term deposit, and "yes" represents the target class where the client subscribed to a term deposit. The values in the lists represent typical duration values for each target class.