Based on the given story, here is the evaluation of its Tragedy Degree and Comedy Degree:

- The story contains minimal tragic elements, revolving more around the emotional significance of the heirloom and the delicate task of restoring it, rather than profound tragedy or loss.
- The story has a positive and heartwarming conclusion, but it does not contain strong comedic aspects or an extremely happy ending. It focuses more on a meaningful and touching resolution.

Therefore, the scores are as follows:

```json
{
  "TragedyDegree": 2,
  "ComedyDegree": 4
}
```
