```json
{
  "TragedyDegree": 1,
  "ComedyDegree": 4
}
```

- **Tragedy Degree**: The story does not contain any tragic elements or emotional setbacks. It is entirely positive and nurturing, focusing on growth and friendship.
- **Comedy Degree**: The story has some light-hearted and feel-good moments, especially in the warmth of the interactions between Rosa and Alejandro. However, it lacks strong comedic or explicitly joyful elements that would warrant a higher score. Hence, it leans more towards sentimental and heartwarming rather than humor-driven, placing it at a 4.
