I am your third uncle

The Song family, Song Xian, Robert Song and others were waiting for Pauline Song to come and apologize.
Soon, Song Wen and Song Wu came back.
The only thing missing is Pauline Song!
Song Xian looked at the embarrassed Song Wen and Song Wu, and asked doubtfully, "What happened to you? Where is Pauline Song?"
Song Wen lowered his head and said shamefully, "Pauline Song was sleeping and didn't come."
Song Wu also pointed at his and Song Wen's limp right arms with a look of grief...