There are Yan and Han in idioms or poems.

Shrike Fei Yan Tang Yan Que Tang Yan Yan Yan Yan Yan Yan Youlong Song Ying Dance Yan Huan Fei Yan Thin Tiger Head Yan Frontal Tiger Head Yan Jaw Old Yan Home Lai Hong went to Jin Yan to cut the jaws, and the rivers were vast.

There is Shuang Yan on the beam, a man and a woman.