<sequential>
  <vertical slug="vertical_7" graceperiod="1 day 12 hours 59 minutes 59 seconds" showanswer="attempted" rerandomize="never">
    <problem filename="Sample_Numeric_Problem" slug="Sample_Numeric_Problem" graceperiod="1 day 12 hours 59 minutes 59 seconds" showanswer="attempted" rerandomize="false" name="Sample Numeric Problem"/>
    <problem filename="Sample_Algebraic_Problem" slug="Sample_Algebraic_Problem" graceperiod="1 day 12 hours 59 minutes 59 seconds" showanswer="attempted" rerandomize="false" name="Sample Algebraic Problem"/>
  </vertical>
</sequential>
