```json
{
  "TragedyDegree": 3,
  "ComedyDegree": 4
}
```

**Explanation:**
- **Tragedy Degree**: The story has almost no tragic elements or significant emotional setbacks. While there may be some minor emotional undertones related to Minh's desire to connect with his grandfather, this does not evoke a strong sense of tragedy or profound sadness. Hence, a score of 3 for Tragedy Degree.
- **Comedy Degree**: The story is relatively light-hearted and includes elements of curiosity and adventure but lacks strong comedic aspects or an extremely happy ending. The tone is more about discovery and connection rather than eliciting laughter or profound joy, leading to a score of 4 for Comedy Degree.
