answer: #Person1# is short-changed five dollars by #Person2#.
documents: #Person1#: Excuse me. I bought this just now and here's a receipt. I'm afraid I was short-changed. Could you look into it?
  #Person2#: Oh, really? Just a moment. . . You paid with a ten-dollar note and I gave you. . . Oh, sorry, here's a five left. I'm terribly sorry.