```json
{
  "TragedyDegree": 3,
  "ComedyDegree": 5
}
```

### Evaluation Rationale:

**Tragedy Degree: 3**
- The story contains some tragic elements, such as Jack's memories of war and loss, which add depth to his character and provide a backdrop for his pride in Ethan. However, these elements are not deeply explored, and the overall tone of the story is optimistic and uplifting rather than profoundly tragic.

**Comedy Degree: 5**
- The story has a relatively light-hearted tone, especially towards the end, where Ethan's success and the appearance of a rainbow create a heartwarming conclusion. While it is not laugh-out-loud funny, it carries a feel-good, emotionally uplifting quality that leans towards a moderate degree of comedy.
