Based on prior knowledge, we can analyze the relationship between the "persons" feature and the target variable "decision to buy this car" as follows:

- Unacceptable: It is likely that the decision to buy this car would be rated as "unacceptable" if the car has a capacity to carry "2" persons. This could be because the car might not accommodate the needs of the buyer in terms of passenger capacity.

- Acceptable: The decision to buy this car could be rated as "acceptable" if the car has a capacity to carry "4" persons. This could be a common choice for families or small groups who require a moderate seating capacity.

- Good/Very Good: It is difficult to predict the specific categories of the "persons" feature that would result in a "good" or "very good" rating for the decision to buy this car. However, it is likely that the range of persons values that fall into these categories would include "more" than 4, indicating that the car has a high seating capacity.

Based on this analysis, we can generate the dictionary with the specified format:

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

Note that "2" is included in the "unacceptable" list, "4" is included in the "acceptable" list, and "more" is included in both the "very good" and "good" lists.