dialogue: Cresa: How much is the admission fee for a student?
  Estele: We offer a reduction of 50 % and comes to $ 10.
  Cresa: Here you are. Where is the museum guide?
  Estele: Well, here you are.
  Cresa: Is it free?
  Estele: Of course.
summary: Cresa buys a student ticket and gets a museum guide with Estele's assistance.