```json
{
  "TragedyDegree": 2,
  "ComedyDegree": 6
}
```

**Evaluation:**

1. **Tragedy Degree - 2:**
   - The story has almost no tragic elements. The minor emotional setbacks include the nervousness before the wedding and the anxiety about the rain.

2. **Comedy Degree - 6:**
   - The story has several light-hearted and warm moments, such as David's humorous comments about datasets and the improvisation of the wedding during the rain. The ending is happy and somewhat comedic, as it portrays a beautifully chaotic yet perfect wedding, bringing a delightful and positive emotional resonance.
