```json
{
    "no": [0, 0, 0, 0, 0], 
    "yes": [0, 0, 0, 0, 0]
}
```

Based on the description of the feature, it is not clear how it directly relates to the task of determining whether a person earns more than 50000 dollars per year. The capital-gain feature represents the capital gain a person had in the last year. However, without additional context or information about the data, it is not possible to determine the appropriate range of values or how it directly relates to the target variable.

Therefore, all the possible values of capital-gain for both target classes ('no' and 'yes') are left as unknown and are represented as a list of zeroes in the dictionary.