wyckoffs: - "f" - "f" - "f" - "f" - "f" - "f" - "f" - "f" - "f" - "f" - "f" - "f" - "f" - "f" - "f" - "f" - "f" - "f" - "d" - "d" - "d" - "d" - "d" - "d" - "f" - "f" - "f" - "f" - "f" - "f" - "e" - "e" - "e" - "e" - "e" - "e" - "e" - "e" - "e" - "d" - "d" - "d" - "d" - "d" - "d" - "e" - "e" - "e" - "f" - "f" - "f" - "f" - "f" - "f" - "c" - "c" - "f" - "f" - "f" - "f" - "f" - "f" - "f" - "f" - "f" - "f" - "f" - "f" - "f" - "f" - "f" - "f" - "f" - "f" - "f" - "f" - "f" - "f" - "f" - "f" - "f" - "f" - "f" - "f" - "f" - "f" - "f" - "f" - "f" - "f" - "f" - "f" - "f" - "f" - "f" - "f" - "f" - "f" - "f" - "f" - "f" - "f" - "f" - "f"