楼栋更新动作分类

提示词

依据已确认动作清单区分保留、修缮、改用及拟新增楼栋，未知项独立表示，不把色彩等同批准状态。

Classify retained, repaired, reused, and proposed buildings from the confirmed action list, keeping unknowns separate and not equating colors with approval status.