wyckoffs:
- "p"
- "p"
- "p"
- "p"
- "p"
- "p"
- "p"
- "p"
- "p"
- "p"
- "p"
- "p"
- "p"
- "p"
- "p"
- "p"
- "p"
- "p"
- "p"
- "p"
- "p"
- "p"
- "p"
- "p"
- "p"
- "p"
- "p"
- "p"
- "p"
- "p"
- "p"
- "p"
- "p"
- "p"
- "p"
- "p"
- "p"
- "p"
- "p"
- "p"
- "p"
- "p"
- "p"
- "p"
- "p"
- "p"
- "p"
- "p"