Rearrange the characters to complete Tang Dynasty poet Li Shang Yin's poem [锦瑟] 'A Beautiful Zither'. Drag and drop each character in the correct order into the dotted area below.

锦瑟无端五十弦,一弦一柱思华年。
庄生晓梦迷蝴蝶,望帝春心托杜鹃。
? ? ? ? ? ? ?,蓝田日暖玉生烟。
此情可待成追忆,只是当时已惘然。

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