text: John: Do you think he really knows what he's talking about?
  Mark: I have sometimes some doubts
  Matthias: Me too
  John: So good, it's not only me
  Matthias: do you remember the women he tried to help?
  John: yes, sure
  Matthias: he only made it worse, and they had to call an ambulance
  John: I know, I'm not sure he even studied physiotherapy 
  Mark: maybe we should just ask him about his education?
  John: I will!
target: John, Mark and Matthias question his competencies.