藝術與建築詞典根目錄
....物件層面
........組件 (層級名)
............成分
................<依特定背景區分之組件>
....................<家具裝潢組件>
........................<家具組件>
............................<床的組件>
................................天蓋 (床具組件)
|||....................................折疊式頂蓬
|||....................................懸臂式頂蓬
|||....................................半天篷
|||................................床架橫條