wyckoffs: - "d" - "d" - "d" - "d" - "d" - "d" - "d" - "d" - "d" - "d" - "d" - "d" - "d" - "d" - "d" - "d" - "d" - "d" - "d" - "d" - "d" - "d" - "d" - "d" - "d" - "d" - "d" - "d" - "d" - "d" - "d" - "d" - "d" - "d" - "d" - "d" - "d" - "d" - "d" - "d" - "d" - "d" - "d" - "d" - "d" - "d" - "d" - "d" - "d" - "d" - "d" - "d" - "d" - "d" - "d" - "d" - "d" - "d" - "d" - "d" - "d" - "d" - "d" - "d" - "d" - "d" - "d" - "d" - "d" - "d" - "d" - "d" - "d" - "d" - "d" - "d" - "d" - "d" - "d" - "d" - "d" - "d" - "d" - "d" - "d" - "d" - "d" - "d" - "d" - "c" - "d" - "d" - "d" - "c"