Based on prior knowledge, the workclass feature can be related to a person's income as it represents the employment status of an individual. Different workclass values may indicate different levels of income. To analyze the relationship between workclass and earning more than 50000 dollars per year, we can look at the income distribution for each work class category.

Here is the dictionary with the possible values of the workclass feature for each target class:

```json
{
	"no": ["Local-gov", "?", "Self-emp-not-inc", "Federal-gov", "State-gov", "Without-pay", "Never-worked"],
	"yes": ["Private", "Self-emp-inc"]
}
```

The target class 'no' includes workclass values: "Local-gov", "?", "Self-emp-not-inc", "Federal-gov", "State-gov", "Without-pay", and "Never-worked". These workclass values may indicate individuals who earn less than or equal to 50000 dollars per year.

The target class 'yes' includes workclass values: "Private" and "Self-emp-inc". These workclass values may indicate individuals who earn more than 50000 dollars per year.

Note that the unknown workclass value '?' is included in the 'no' class as it is difficult to predict its relationship with earning more than 50000 dollars per year.