Poem Du Fu's three sentences;

Play the first chapter of Nan Zhou.

This should be regarded as a very old wedding couplet, which is very suitable for Chinese wedding background couplets. Du Fu's three sentences-according to legend, it is the third sentence in Du Fu's Four Happiness poem: "Wedding night". Nan Zhou's first chapter refers to the first poem in The Book of Songs Nan Zhou, which is also a love poem Guan Ju.