conversations.from: human
conversations.value: Sandy's goal is to drink 3 liters of water in a day. She drinks 500 milliliters of water every after 2 hours. After how many hours will she be able to drink a total of 3 liters of water?
  Work out the solution step by step.
conversations.from: assistant
conversations.value: Since there are 1000 milliliters in 1 liter, then 3 liters is equal to 3 x 1000 = 3000 milliliters.
  She needs to drink 3000/500 = 6 sets of 500 milliliters of water.
  So, she will be able to drink a total of 3 liters after 6 sets x every 2 hours = 12 hours.