Based on prior knowledge, we can assume that the capacity of the car in terms of persons to carry (feature: persons) is likely to have an impact on the rating of the decision to buy the car. Let's analyze how this feature relates to the target variable:

1. If the car has a capacity to carry just 2 persons, it might be considered unacceptable by potential buyers who need to accommodate more people.
2. If the car has a capacity to carry 4 persons, it could be considered acceptable by some individuals or families.
3. If the car has a capacity to carry more than 4 persons, it might be considered good or very good by individuals or families who require more seating space or have larger households.

Based on this analysis, we can create the requested dictionary:

```json
{
	"unacceptable": ["2"],
	"acceptable": ["4"],
	"very good": ["more"],
	"good": ["more"]
}
```

Please note that in this case, the values "2" and "more" are listed for both "very good" and "good" target classes since both classes could potentially find cars with a capacity greater than 4 acceptable, even though it might be more desirable for the target class "very good".