Shang Kun was right. "Que" is a quantifier, which means a complete word. It is usually used to represent a complete poem or song in classical poetry. In Chinese, "Shangque" and "Xiaque" usually refer to two parts of a poem. The upper part is called Shangque and the lower part is called Xiaque. Therefore, the "lack" in Song Ci is correct and the "lack" is incorrect.