Task: Text Simplification
Input (English): the big mac ppp exchange rate between two countries is obtained by dividing the price of a big mac in one country -lrb- in its currency -rrb- by the price of a big mac in another country -lrb- in its currency -rrb-.
Output (English): the big mac ppp exchange rate between two countries is got by dividing the price of a big mac in one country -lrb- in its currency -rrb- by the price of a big mac in another country -lrb- in its currency -rrb-.