Based on the given story, here is the evaluation using the provided criteria:

1. **Tragedy Degree**:
   - The story does not contain almost any tragic elements. The plot is mainly focused on Sarah’s personal growth and her exploration of nature.
   - Therefore, the Tragedy Degree is low.

2. **Comedy Degree**:
   - The story includes some light-hearted and positive elements, such as Sarah's joy in discovering nature and overcoming her urban dependence, but it does not feature strong comedic aspects or an extremely happy ending.
   - Therefore, the Comedy Degree is moderate.

Based on these observations, here is the JSON format output:

```json
{
  "TragedyDegree": 1,
  "ComedyDegree": 5
}
```
