Sentence:  As I was walking down the street last night / A pretty little girl came into sight / I bowed and smiled and asked her name / She said, "Hold it bud, I don't play that game" / I reached in my pocket, and to her big surprise / There was <WSD>Lincoln</WSD> staring her dead in the eyes. 
Meaning of the word marked with <WSD> tags:  A five-dollar bill.