Based on the given story, I have evaluated and rated the Tragedy Degree and Comedy Degree as follows:

**Tragedy Degree:**
While the story includes some emotional struggles and challenges, such as Elizabeth's frustration with resistant factory owners and the environmental degradation she witnesses, it doesn't delve deeply into personal loss or profound tragedy. The narrative remains relatively light-hearted with hopeful undertones.

**Comedy Degree:**
The story concludes on a positive note with Elizabeth achieving a significant victory in her environmental efforts. However, it lacks strong comedic elements, humorous situations, or particularly light-hearted content. The sense of accomplishment and mild relief at the end qualify it as having a moderately happy ending.

Here is the JSON output:

```json
{
  "TragedyDegree": 4,
  "ComedyDegree": 6
}
```

These scores reflect that the story contains some moderate emotional setbacks (Tragedy Degree: 4) but also has a relatively happy and optimistic conclusion (Comedy Degree: 6).
