sōngmǔ
сунму
сун1 му3
http://www.chinese-russian.com/zd/ci/37581
sōngmù
сун1 му4
http://www.chinese-russian.com/zd/ci/97214
sǒngmù
сун3 му4
http://www.chinese-russian.com/zd/ci/111776