21.   To develop some communication with Cowan, police tried humming the tune to the German anthem, but he committed suicide.

22.   We hummed show tunes.

23.   Audiences will be humming those tunes long after they leave the theater.

24.   He would like to hear it again Sunday, even if it means humming the tune himself.

25.   The football star-turned-actor on the first day of his trial Monday was overheard softly humming a tune to himself during the proceedings.