text: In the following you will be presented with multiple choices between two options O and M.
  Please name which option you would prefer by pressing the corresponding key.
  
  You have the choice between receiving 500$ immediately (press O) or receiving 550$ in one year (press M). You press <<M>>.
  You have the choice between receiving 500$ immediately (press O) or receiving 510$ in one year (press M). You press <<O>>.
  You have the choice between paying 500$ immediately (press O) or paying 550$ in one year (press M). You press <<O>>.
  You have the choice between paying 500$ immediately (press O) or paying 510$ in one year (press M). You press <<M>>.
  You have the choice between receiving 5000$ immediately (press O) or receiving 5500$ in one year (press M). You press <<M>>.
  You have the choice between receiving 5000$ immediately (press O) or receiving 5100$ in one year (press M). You press <<O>>.
  You have the choice between receiving 500$ in one year (press O) or receiving 550$ in two years (press M). You press <<M>>.
  You have the choice between receiving 500$ immediately (press O) or receiving 600$ in two years (press M). You press <<M>>.
  You have the choice between wait 500$ immediately (press O) or wait 550$ in one year (press M). You press <<M>>.
  You have the choice between receive 500$ immediately (press O) or receive 550$ in one year (press M). You press <<M>>.