input:
  question: If you are driving the bus, and bus initially has 10 passengers. At first
    bus stop 4 passenger gets off the bus and 3 get on to the bus. At second bus stop,
    3 passenger get off the bus and 5 get on the bus. Now bus reached to it's final
    stop. Answer the following questions, Who is driving the bus and how many total
    passenger will get off from the bus at final stop?
output: "The initial number of passengers on the bus is 10. At the first bus stop,
  4 passengers get off and 3 get on, resulting \nin a net increase of 1 passenger.
  At the second bus stop, 3 passengers get off and 5 get on, resulting in a net \nincrease
  of 2 passengers. Adding these changes to the initial number, we find that there
  are 10 (initial passengers) + \n1 (first bus stop) + 2 (second bus stop) = 13 passengers
  on the bus at the final stop. Since the driver's seat is \nalways occupied, the
  driver will not get off the bus at the final stop, so the total number of passengers
  getting off \nat the final stop is still 0."