Based on my prior knowledge, the relationship between the number of persons a car can carry and the rating of the decision to buy the car can be analyzed as follows:

1. Unacceptable: This rating category might include situations where the car cannot carry enough persons to meet the buyer's needs. Therefore, it is possible that the feature value '2' (car capacity for 2 persons) could be associated with the "unacceptable" rating.

2. Acceptable: This rating category could include situations where the car can carry a sufficient number of persons, but it may not have extra capacity. Both the '2' and '4' values for the feature might be associated with the "acceptable" rating, as they can accommodate at least 2 or 4 persons respectively.

3. Good: This rating category could include situations where the car has extra capacity to carry more persons comfortably. Therefore, the 'more' value for the feature, indicating a car with a capacity of more than 4 persons, could be associated with the "good" rating.

4. Very Good: This rating category could also include situations where the car has extra capacity to carry more persons comfortably. Therefore, the 'more' value for the feature, indicating a car with a capacity of more than 4 persons, could be associated with the "very good" rating.

Based on this analysis, I will create a dictionary with the requested format:

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