What is the exposition and resolution of this story?

The exposition of Langston Hughes's "Thank You, Ma'am" is basically the first three sentences of the story that establish Mrs. Luella Bates Washington Jones as a character and establish the basic setting of the story--11:00 o'clock at night as Mrs. Jones walks home from work alone.

The initiating event, then, is Roger's attempt to steal Mrs. Jones's purse in the fourth sentence.

The resolution comes in the last three paragraphs of the story when Mrs. Jones gives Roger the $10 to buy his blue suede shoes and allows him to leave. Roger is barely able to say "thank you" and never sees Mrs. Jones again.